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Peter Dillinger da478f3eae Fix major bug with MultiGet, DeleteRange, and memtable Bloom (#9453) 
Summary:
MemTable::MultiGet was not considering range tombstones before
querying Bloom filter. This means range tombstones would be skipped for
keys (or prefixes) with no other entries in the memtable. This could cause
old values for a key (in SST files) to still show up until the range tombstone
covering it has been flushed.

This is fixed by essentially disabling the memtable Bloom filter when there
are any range tombstones. (This could be better optimized in the future, but
good enough for now.)

Did some other cleanup/optimization in the same code to (more than) offset
the cost of checking on range tombstones in more cases. There is now
notable improvement when memtable_whole_key_filtering and prefix_extractor
are used together (unusual), and this makes MultiGet closer to the Get
implementation.

Pull Request resolved: https://github.com/facebook/rocksdb/pull/9453

Test Plan:
new unit test added. Added memtable Bloom to crash test.

Performance testing
--------------------

Build WAL-only DB (recovers to memtable):
```
TEST_TMPDIR=/dev/shm/rocksdb ./db_bench -benchmarks=fillrandom -num=1000000 -write_buffer_size=250000000
```

Query test command, to maximize sensitivity to the changed code:
```
TEST_TMPDIR=/dev/shm/rocksdb ./db_bench -use_existing_db -readonly -benchmarks=multireadrandom -num=10000000 -write_buffer_size=250000000 -memtable_bloom_size_ratio=0.015 -multiread_batched -batch_size=24 -threads=8 -memtable_whole_key_filtering=$MWKF -prefix_size=$PXS
```
(Note -num here is 10x larger for mostly memtable misses)

Before & after run simultaneously, average over 10 iterations per data point, ops/sec.

MWKF=0 PXS=0 (Bloom disabled)
Before: 5724844
After: 6722066

MWKF=0 PXS=7 (prefixes hardly unique; Bloom not useful)
Before: 9981319
After: 10237990

MWKF=0 PXS=8 (prefixes unique; Bloom useful)
Before:  12081715
After: 12117603

MWKF=1 PXS=0 (whole key Bloom useful)
Before: 11944354
After: 12096085

MWKF=1 PXS=7 (whole key Bloom useful in new version; prefixes not useful in old version)
Before: 9444299
After: 11826029

MWKF=1 PXS=7 (whole key Bloom useful in new version; prefixes useful in old version)
Before: 11784465
After: 11778591

Only in this last case is the 'before' *slightly* faster, perhaps because hashing prefixes is slightly faster than hashing whole keys. Otherwise, 'after' is faster.

Reviewed By: ajkr

Differential Revision: D33805025

Pulled By: pdillinger

fbshipit-source-id: 597523cae4f4eafdf6ae6bb2bc6cb46f83b017bf
2022-01-31 11:32:04 -08:00
..
blob Add commit marker with timestamp (#9266) 2021-12-10 11:05:35 -08:00
compaction Fast path for detecting unchanged prefix_extractor (#9407) 2022-01-21 11:37:46 -08:00
db_impl Fix flaky EventListenerTest.DisableBGCompaction (#9400) 2022-01-21 08:25:09 -08:00
arena_wrapped_db_iter.cc Rename ImmutableOptions variables (#8409) 2021-06-16 16:51:38 -07:00
arena_wrapped_db_iter.h Cleanup includes in dbformat.h (#8930) 2021-09-29 04:04:40 -07:00
builder.cc Fast path for detecting unchanged prefix_extractor (#9407) 2022-01-21 11:37:46 -08:00
builder.h Expose blob file information through the EventListener interface (#8675) 2021-09-16 17:23:36 -07:00
c_test.c Fix a bug in C-binding causing iterator to return incorrect result (#9343) 2021-12-30 12:48:07 -08:00
c.cc Take compression level_values as const pointer (#9376) 2022-01-12 08:34:53 -08:00
column_family_test.cc More refactoring ahead of footer & meta changes (#9240) 2021-12-10 08:13:26 -08:00
column_family.cc Fix bug affecting GetSortedWalFiles, Backups, Checkpoint (#9208) 2021-11-24 14:52:00 -08:00
column_family.h Add DB properties for BlobDB (#8734) 2021-09-08 12:22:04 -07:00
compact_files_test.cc Compaction should not move data to up level (#8116) 2021-03-29 17:10:42 -07:00
comparator_db_test.cc More refactoring ahead of footer & meta changes (#9240) 2021-12-10 08:13:26 -08:00
convenience.cc Fast path for detecting unchanged prefix_extractor (#9407) 2022-01-21 11:37:46 -08:00
corruption_test.cc Make the Env class Customizable (#9293) 2022-01-04 16:45:49 -08:00
cuckoo_table_db_test.cc Experimental support for SST unique IDs (#8990) 2021-10-18 23:32:01 -07:00
db_basic_test.cc Fix clang13 build error (#9374) 2022-01-11 10:36:22 -08:00
db_block_cache_test.cc New stable, fixed-length cache keys (#9126) 2021-12-16 17:15:13 -08:00
db_bloom_filter_test.cc Fix major bug with MultiGet, DeleteRange, and memtable Bloom (#9453) 2022-01-31 11:32:04 -08:00
db_compaction_filter_test.cc Fix a minor issue with initializing the test path (#8555) 2021-07-23 08:38:45 -07:00
db_compaction_test.cc Add commit marker with timestamp (#9266) 2021-12-10 11:05:35 -08:00
db_dynamic_level_test.cc Make SystemClock into a Customizable Class (#8636) 2021-09-21 09:23:48 -07:00
db_encryption_test.cc Fix a minor issue with initializing the test path (#8555) 2021-07-23 08:38:45 -07:00
db_filesnapshot.cc Fix bug affecting GetSortedWalFiles, Backups, Checkpoint (#9208) 2021-11-24 14:52:00 -08:00
db_flush_test.cc Add commit marker with timestamp (#9266) 2021-12-10 11:05:35 -08:00
db_info_dumper.cc Allow WAL dir to change with db dir (#8582) 2021-07-30 12:16:44 -07:00
db_info_dumper.h Add a DB Session ID (#6959) 2020-06-15 10:47:02 -07:00
db_inplace_update_test.cc Fix a minor issue with initializing the test path (#8555) 2021-07-23 08:38:45 -07:00
db_io_failure_test.cc Enable a few unit tests to use custom Env objects (#9087) 2021-11-08 11:05:59 -08:00
db_iter_stress_test.cc Make ImmutableOptions struct that inherits from ImmutableCFOptions and ImmutableDBOptions (#8262) 2021-05-05 14:00:17 -07:00
db_iter_test.cc Remove some unneeded code (#8736) 2021-09-01 14:28:58 -07:00
db_iter.cc Support readahead during compaction for blob files (#9187) 2021-11-19 17:53:47 -08:00
db_iter.h Cleanup includes in dbformat.h (#8930) 2021-09-29 04:04:40 -07:00
db_iterator_test.cc Fix a minor issue with initializing the test path (#8555) 2021-07-23 08:38:45 -07:00
db_kv_checksum_test.cc Allow WriteBatch to have keys with different timestamp sizes (#8725) 2021-09-12 15:34:26 -07:00
db_log_iter_test.cc Attempt to deflake DBTestXactLogIterator.TransactionLogIteratorCorruptedLog (#8627) 2021-08-10 11:10:07 -07:00
db_logical_block_size_cache_test.cc Add further tests to ASSERT_STATUS_CHECKED (2) (#7698) 2020-12-09 21:21:16 -08:00
db_memtable_test.cc Fix a minor issue with initializing the test path (#8555) 2021-07-23 08:38:45 -07:00
db_merge_operand_test.cc Fix a minor issue with initializing the test path (#8555) 2021-07-23 08:38:45 -07:00
db_merge_operator_test.cc Fix a minor issue with initializing the test path (#8555) 2021-07-23 08:38:45 -07:00
db_options_test.cc Fix an issue with MemTableRepFactory::CreateFromString (#9273) 2021-12-09 12:36:18 -08:00
db_properties_test.cc Add support for building on s390x platform (#8962) 2021-10-22 10:13:15 -07:00
db_range_del_test.cc Incremental Space Amp Compactions in Universal Style (#8655) 2021-10-20 10:04:13 -07:00
db_secondary_test.cc Make the Env class Customizable (#9293) 2022-01-04 16:45:49 -08:00
db_sst_test.cc Make the Env class Customizable (#9293) 2022-01-04 16:45:49 -08:00
db_statistics_test.cc Bytes read stat for VerifyChecksum() and VerifyFileChecksums() APIs (#8741) 2021-09-07 13:28:29 -07:00
db_table_properties_test.cc Fix backward compatibility with 2.5 through 2.7 (#9189) 2021-11-19 17:31:01 -08:00
db_tailing_iter_test.cc Fix a minor issue with initializing the test path (#8555) 2021-07-23 08:38:45 -07:00
db_test2.cc Fix clang13 build error (#9374) 2022-01-11 10:36:22 -08:00
db_test_util.cc Add Options::DisableExtraChecks, clarify force_consistency_checks (#9363) 2022-01-18 17:31:03 -08:00
db_test_util.h Make the Env class Customizable (#9293) 2022-01-04 16:45:49 -08:00
db_test.cc Enable db_test running in Centos 32 bit OS and Alpine 32 bit OS (#9294) 2022-01-14 11:58:18 -08:00
db_universal_compaction_test.cc Adhere to per-DB concurrency limit when bottom-pri compactions exist (#9179) 2021-11-18 17:31:50 -08:00
db_wal_test.cc Add commit marker with timestamp (#9266) 2021-12-10 11:05:35 -08:00
db_with_timestamp_basic_test.cc Make IncreaseFullHistoryTsLow to a public API (#9221) 2021-12-23 11:03:51 -08:00
db_with_timestamp_compaction_test.cc Make MemTableRepFactory into a Customizable class (#8419) 2021-09-08 07:46:44 -07:00
db_write_buffer_manager_test.cc Enable a few unit tests to use custom Env objects (#9087) 2021-11-08 11:05:59 -08:00
db_write_test.cc Enable a few unit tests to use custom Env objects (#9087) 2021-11-08 11:05:59 -08:00
dbformat_test.cc Enable a few unit tests to use custom Env objects (#9087) 2021-11-08 11:05:59 -08:00
dbformat.cc Track per-SST user-defined timestamp information in MANIFEST (#9092) 2021-11-10 10:49:04 -08:00
dbformat.h Add commit marker with timestamp (#9266) 2021-12-10 11:05:35 -08:00
deletefile_test.cc Enable a few unit tests to use custom Env objects (#9087) 2021-11-08 11:05:59 -08:00
error_handler_fs_test.cc Fix race condition in error_handler_fs_test (#9325) 2021-12-20 23:16:52 -08:00
error_handler.cc Add a listener callback for end of auto error recovery (#9244) 2021-12-08 14:30:57 -08:00
error_handler.h cleanup error_handler related code (#9098) 2021-11-08 15:49:17 -08:00
event_helpers.cc Add a listener callback for end of auto error recovery (#9244) 2021-12-08 14:30:57 -08:00
event_helpers.h Add a listener callback for end of auto error recovery (#9244) 2021-12-08 14:30:57 -08:00
experimental.cc Replace namespace name "rocksdb" with ROCKSDB_NAMESPACE (#6433) 2020-02-20 12:09:57 -08:00
external_sst_file_basic_test.cc Enable a few unit tests to use custom Env objects (#9087) 2021-11-08 11:05:59 -08:00
external_sst_file_ingestion_job.cc Fast path for detecting unchanged prefix_extractor (#9407) 2022-01-21 11:37:46 -08:00
external_sst_file_ingestion_job.h New stable, fixed-length cache keys (#9126) 2021-12-16 17:15:13 -08:00
external_sst_file_test.cc Make the Env class Customizable (#9293) 2022-01-04 16:45:49 -08:00
fault_injection_test.cc Fix a bug causing duplicate trailing entries in WritableFile (buffered IO) (#9236) 2021-12-13 09:00:36 -08:00
file_indexer_test.cc Replace namespace name "rocksdb" with ROCKSDB_NAMESPACE (#6433) 2020-02-20 12:09:57 -08:00
file_indexer.cc Replace namespace name "rocksdb" with ROCKSDB_NAMESPACE (#6433) 2020-02-20 12:09:57 -08:00
file_indexer.h Replace namespace name "rocksdb" with ROCKSDB_NAMESPACE (#6433) 2020-02-20 12:09:57 -08:00
filename_test.cc Remove unused includes (#7604) 2020-10-28 23:22:27 -07:00
flush_job_test.cc Fix NotifyOnFlushCompleted() for atomic flush (#8585) 2021-08-03 13:31:10 -07:00
flush_job.cc File temperature information should be preserved when restart the DB (#9242) 2021-12-03 14:43:14 -08:00
flush_job.h Cleanup includes in dbformat.h (#8930) 2021-09-29 04:04:40 -07:00
flush_scheduler.cc Replace namespace name "rocksdb" with ROCKSDB_NAMESPACE (#6433) 2020-02-20 12:09:57 -08:00
flush_scheduler.h Include C++ standard library headers instead of C compatibility headers (#8068) 2021-03-19 12:09:47 -07:00
forward_iterator_bench.cc Remove using namespace (#9369) 2022-01-12 09:31:12 -08:00
forward_iterator.cc Fast path for detecting unchanged prefix_extractor (#9407) 2022-01-21 11:37:46 -08:00
forward_iterator.h Fast path for detecting unchanged prefix_extractor (#9407) 2022-01-21 11:37:46 -08:00
import_column_family_job.cc Fast path for detecting unchanged prefix_extractor (#9407) 2022-01-21 11:37:46 -08:00
import_column_family_job.h New stable, fixed-length cache keys (#9126) 2021-12-16 17:15:13 -08:00
import_column_family_test.cc Fix a minor issue with initializing the test path (#8555) 2021-07-23 08:38:45 -07:00
internal_stats.cc InternalStats::DumpCFMapStat: fix sum.w_amp (#9065) 2021-10-31 23:11:43 -07:00
internal_stats.h Support GetMapProperty() with "rocksdb.dbstats" (#9057) 2021-10-20 13:17:00 -07:00
job_context.h Fix and detect headers with missing dependencies (#8893) 2021-09-10 10:00:26 -07:00
kv_checksum.h fix compile errors in db/kv_checksum.h (#9173) 2021-11-16 10:20:50 -08:00
listener_test.cc Fix flaky EventListenerTest.DisableBGCompaction (#9400) 2022-01-21 08:25:09 -08:00
log_format.h Replace namespace name "rocksdb" with ROCKSDB_NAMESPACE (#6433) 2020-02-20 12:09:57 -08:00
log_reader.cc Fix kPointInTimeRecovery handling of truncated WAL (#7701) 2020-11-30 18:11:38 -08:00
log_reader.h Real fix for race in backup custom checksum checking (#7309) 2020-08-26 10:39:20 -07:00
log_test.cc Make StringEnv, StringSink, StringSource use FS classes (#7786) 2021-01-04 16:01:01 -08:00
log_writer.cc Using existing crc32c checksum in checksum handoff for Manifest and WAL (#8412) 2021-06-25 00:47:17 -07:00
log_writer.h Include C++ standard library headers instead of C compatibility headers (#8068) 2021-03-19 12:09:47 -07:00
logs_with_prep_tracker.cc Replace namespace name "rocksdb" with ROCKSDB_NAMESPACE (#6433) 2020-02-20 12:09:57 -08:00
logs_with_prep_tracker.h Include C++ standard library headers instead of C compatibility headers (#8068) 2021-03-19 12:09:47 -07:00
lookup_key.h Cleanup includes in dbformat.h (#8930) 2021-09-29 04:04:40 -07:00
malloc_stats.cc Replace most typedef with using= (#8751) 2021-09-07 11:31:59 -07:00
malloc_stats.h Replace namespace name "rocksdb" with ROCKSDB_NAMESPACE (#6433) 2020-02-20 12:09:57 -08:00
manual_compaction_test.cc Remove using namespace (#9369) 2022-01-12 09:31:12 -08:00
memtable_list_test.cc MemTableList::TrimHistory now use allocated bytes (#9020) 2021-12-02 11:45:39 -08:00
memtable_list.cc Make MemoryAllocator into a Customizable class (#8980) 2021-12-17 04:20:47 -08:00
memtable_list.h Make MemoryAllocator into a Customizable class (#8980) 2021-12-17 04:20:47 -08:00
memtable.cc Fix major bug with MultiGet, DeleteRange, and memtable Bloom (#9453) 2022-01-31 11:32:04 -08:00
memtable.h Fix major bug with MultiGet, DeleteRange, and memtable Bloom (#9453) 2022-01-31 11:32:04 -08:00
merge_context.h Add Merge Operator support to WriteBatchWithIndex (#8135) 2021-05-10 12:50:25 -07:00
merge_helper_test.cc Support readahead during compaction for blob files (#9187) 2021-11-19 17:53:47 -08:00
merge_helper.cc Support readahead during compaction for blob files (#9187) 2021-11-19 17:53:47 -08:00
merge_helper.h Support readahead during compaction for blob files (#9187) 2021-11-19 17:53:47 -08:00
merge_operator.cc Replace namespace name "rocksdb" with ROCKSDB_NAMESPACE (#6433) 2020-02-20 12:09:57 -08:00
merge_test.cc Make the Env class Customizable (#9293) 2022-01-04 16:45:49 -08:00
obsolete_files_test.cc Add commit marker with timestamp (#9266) 2021-12-10 11:05:35 -08:00
options_file_test.cc No elide constructors (#7798) 2020-12-23 16:55:53 -08:00
output_validator.cc Cleanup includes in dbformat.h (#8930) 2021-09-29 04:04:40 -07:00
output_validator.h Cleanup includes in dbformat.h (#8930) 2021-09-29 04:04:40 -07:00
perf_context_test.cc Use SystemClock* instead of std::shared_ptr<SystemClock> in lower level routines (#8033) 2021-03-15 04:34:11 -07:00
periodic_work_scheduler_test.cc Fix a minor issue with initializing the test path (#8555) 2021-07-23 08:38:45 -07:00
periodic_work_scheduler.cc Use SystemClock* instead of std::shared_ptr<SystemClock> in lower level routines (#8033) 2021-03-15 04:34:11 -07:00
periodic_work_scheduler.h Add a SystemClock class to capture the time functions of an Env (#7858) 2021-01-25 22:09:11 -08:00
pinned_iterators_manager.h Replace most typedef with using= (#8751) 2021-09-07 11:31:59 -07:00
plain_table_db_test.cc Fast path for detecting unchanged prefix_extractor (#9407) 2022-01-21 11:37:46 -08:00
pre_release_callback.h Fix and detect headers with missing dependencies (#8893) 2021-09-10 10:00:26 -07:00
prefix_test.cc Use SystemClock* instead of std::shared_ptr<SystemClock> in lower level routines (#8033) 2021-03-15 04:34:11 -07:00
range_del_aggregator_bench.cc Cleanup multiple implementations of VectorIterator (#8901) 2021-10-06 07:48:31 -07:00
range_del_aggregator_test.cc Cleanup multiple implementations of VectorIterator (#8901) 2021-10-06 07:48:31 -07:00
range_del_aggregator.cc In ParseInternalKey(), include corrupt key info in Status (#7515) 2020-10-28 10:12:58 -07:00
range_del_aggregator.h Fix some typos in comments (#8066) 2021-03-25 21:18:08 -07:00
range_tombstone_fragmenter_test.cc Cleanup multiple implementations of VectorIterator (#8901) 2021-10-06 07:48:31 -07:00
range_tombstone_fragmenter.cc Added memtable garbage statistics (#8411) 2021-06-18 04:57:27 -07:00
range_tombstone_fragmenter.h Added memtable garbage statistics (#8411) 2021-06-18 04:57:27 -07:00
read_callback.h Fix and detect headers with missing dependencies (#8893) 2021-09-10 10:00:26 -07:00
repair_test.cc Some fixes and enhancements to ldb repair (#8544) 2021-07-28 16:44:14 -07:00
repair.cc Fast path for detecting unchanged prefix_extractor (#9407) 2022-01-21 11:37:46 -08:00
snapshot_checker.h Replace namespace name "rocksdb" with ROCKSDB_NAMESPACE (#6433) 2020-02-20 12:09:57 -08:00
snapshot_impl.cc Replace namespace name "rocksdb" with ROCKSDB_NAMESPACE (#6433) 2020-02-20 12:09:57 -08:00
snapshot_impl.h Fix and detect headers with missing dependencies (#8893) 2021-09-10 10:00:26 -07:00
table_cache.cc Fast path for detecting unchanged prefix_extractor (#9407) 2022-01-21 11:37:46 -08:00
table_cache.h Fast path for detecting unchanged prefix_extractor (#9407) 2022-01-21 11:37:46 -08:00
table_properties_collector_test.cc Improve / clean up meta block code & integrity (#9163) 2021-11-18 11:43:44 -08:00
table_properties_collector.cc Apply sample_for_compression to all block-based tables (#8105) 2021-03-25 15:00:45 -07:00
table_properties_collector.h Track each SST's timestamp information as user properties (#9093) 2021-11-19 11:37:06 -08:00
transaction_log_impl.cc Add commit marker with timestamp (#9266) 2021-12-10 11:05:35 -08:00
transaction_log_impl.h Cleanup includes in dbformat.h (#8930) 2021-09-29 04:04:40 -07:00
trim_history_scheduler.cc Replace namespace name "rocksdb" with ROCKSDB_NAMESPACE (#6433) 2020-02-20 12:09:57 -08:00
trim_history_scheduler.h Replace namespace name "rocksdb" with ROCKSDB_NAMESPACE (#6433) 2020-02-20 12:09:57 -08:00
version_builder_test.cc File temperature information should be preserved when restart the DB (#9242) 2021-12-03 14:43:14 -08:00
version_builder.cc Fast path for detecting unchanged prefix_extractor (#9407) 2022-01-21 11:37:46 -08:00
version_builder.h Fast path for detecting unchanged prefix_extractor (#9407) 2022-01-21 11:37:46 -08:00
version_edit_handler.cc Fast path for detecting unchanged prefix_extractor (#9407) 2022-01-21 11:37:46 -08:00
version_edit_handler.h Fixed manifest_dump issues when printing keys and values containing null characters (#8378) 2021-06-10 12:55:20 -07:00
version_edit_test.cc File temperature information should be preserved when restart the DB (#9242) 2021-12-03 14:43:14 -08:00
version_edit.cc Print file checksum in hex (#9196) 2021-11-22 09:30:47 -08:00
version_edit.h Recover to exact latest seqno of data committed to MANIFEST (#9305) 2022-01-05 16:02:21 -08:00
version_set_test.cc Add filename to several Corruption messages (#9239) 2022-01-07 18:09:48 -08:00
version_set.cc Fast path for detecting unchanged prefix_extractor (#9407) 2022-01-21 11:37:46 -08:00
version_set.h Remove obsolete function declaration (#8724) 2022-01-07 18:06:10 -08:00
wal_edit_test.cc Always track WAL obsoletion (#7759) 2020-12-09 16:02:12 -08:00
wal_edit.cc Always track WAL obsoletion (#7759) 2020-12-09 16:02:12 -08:00
wal_edit.h Always track WAL obsoletion (#7759) 2020-12-09 16:02:12 -08:00
wal_manager_test.cc Make SystemClock into a Customizable Class (#8636) 2021-09-21 09:23:48 -07:00
wal_manager.cc Allow WAL dir to change with db dir (#8582) 2021-07-30 12:16:44 -07:00
wal_manager.h Allow WAL dir to change with db dir (#8582) 2021-07-30 12:16:44 -07:00
write_batch_base.cc Replace namespace name "rocksdb" with ROCKSDB_NAMESPACE (#6433) 2020-02-20 12:09:57 -08:00
write_batch_internal.h Fix link error reported in issue 9272 (#9278) 2021-12-10 20:33:46 -08:00
write_batch_test.cc Add commit marker with timestamp (#9266) 2021-12-10 11:05:35 -08:00
write_batch.cc Fix link error reported in issue 9272 (#9278) 2021-12-10 20:33:46 -08:00
write_callback_test.cc Move slow valgrind tests behind -DROCKSDB_FULL_VALGRIND_RUN (#8475) 2021-07-07 11:14:05 -07:00
write_callback.h Replace namespace name "rocksdb" with ROCKSDB_NAMESPACE (#6433) 2020-02-20 12:09:57 -08:00
write_controller_test.cc Revamp WriteController (#8064) 2021-03-18 09:47:31 -07:00
write_controller.cc Revamp WriteController (#8064) 2021-03-18 09:47:31 -07:00
write_controller.h Revamp WriteController (#8064) 2021-03-18 09:47:31 -07:00
write_thread.cc Stall writes in WriteBufferManager when memory_usage exceeds buffer_size (#7898) 2021-04-21 13:54:02 -07:00
write_thread.h typo: fix typo in db/write_thread's state (#8423) 2021-06-18 17:14:51 -07:00