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Yanqin Jin 92b4401566 Avoid memtable cut when active memtable is empty (#4595) 
Summary:
For flush triggered by RocksDB due to memory usage approaching certain
threshold (WriteBufferManager or Memtable full), we should cut the memtable
only when the current active memtable is not empty, i.e. contains data. This is
what we do for non-atomic flush. If we always cut memtable even when the active
memtable is empty, we will generate extra, empty immutable memtable.
This is not ideal since it may cause write stall. It also causes some
DBAtomicFlushTest to fail because cfd->imm()->NumNotFlushed() is different from
expectation.

Test plan
```
$make clean && make J=1 -j32 all check
$make clean && OPT="-DROCKSDB_LITE -g" make J=1 -j32 all check
$make clean && TEST_TMPDIR=/dev/shm/rocksdb OPT=-g make J=1 -j32 valgrind_test
```
Pull Request resolved: https://github.com/facebook/rocksdb/pull/4595

Differential Revision: D12818520

Pulled By: riversand963

fbshipit-source-id: d867bdbeacf4199fdd642debb085f94703c41a18
2018-10-29 09:45:32 -07:00
..
builder.cc
Add listener to sample file io (#3933)
2018-10-12 18:36:11 -07:00
builder.h
Index value delta encoding (#3983)
2018-08-09 16:58:40 -07:00
c_test.c
Adjust c test and fix windows compilation issues
2018-09-14 20:57:22 -07:00
c.cc
Memory usage stats in C API (#4340)
2018-09-13 14:27:31 -07:00
column_family_test.cc
add locking around calls to RecalculateWriteStallConditions in column_family_test (#4474)
2018-10-09 14:10:13 -07:00
column_family.cc
Skip deleted WALs during recovery
2018-05-03 15:43:09 -07:00
column_family.h
Add max_subcompactions as a compaction option
2018-04-27 11:57:39 -07:00
compact_files_test.cc
Check for compression lib support before test exec (#4443)
2018-10-02 10:42:01 -07:00
compacted_db_impl.cc
move dump stats to a separate thread (#4382)
2018-10-08 22:54:43 -07:00
compacted_db_impl.h
Comment out unused variables
2018-03-05 13:13:41 -08:00
compaction_iteration_stats.h
add counter for deletion dropping optimization
2017-08-19 14:10:08 -07:00
compaction_iterator_test.cc
Drop unnecessary deletion markers during compaction (issue - 3842) (#4289)
2018-08-24 15:17:54 -07:00
compaction_iterator.cc
Avoid per-key linear scan over snapshots in compaction (#4495)
2018-10-15 16:21:22 -07:00
compaction_iterator.h
option for timing measurement of non-blocking ops during compaction (#4029)
2018-06-21 21:28:05 -07:00
compaction_job_stats_test.cc
Per-thread unique test db names (#4135)
2018-07-13 17:27:39 -07:00
compaction_job_test.cc
Auto recovery from out of space errors (#4164)
2018-09-15 13:43:04 -07:00
compaction_job.cc
Add listener to sample file io (#3933)
2018-10-12 18:36:11 -07:00
compaction_job.h
Allow DB resume after background errors (#3997)
2018-06-28 12:34:40 -07:00
compaction_picker_test.cc
Remove random writes from SST file ingestion (#4172)
2018-07-27 16:12:23 -07:00
compaction_picker_universal.cc
Remove random writes from SST file ingestion (#4172)
2018-07-27 16:12:23 -07:00
compaction_picker_universal.h
Delete triggered compaction for universal style
2018-05-29 15:44:34 -07:00
compaction_picker.cc
Properly determine a truncated CompactRange stop key (#4496)
2018-10-15 23:22:51 -07:00
compaction_picker.h
Properly determine a truncated CompactRange stop key (#4496)
2018-10-15 23:22:51 -07:00
compaction.cc
Truncate range tombstones by leveraging InternalKeys (#4432)
2018-10-09 15:19:38 -07:00
compaction.h
Truncate range tombstones by leveraging InternalKeys (#4432)
2018-10-09 15:19:38 -07:00
comparator_db_test.cc
Per-thread unique test db names (#4135)
2018-07-13 17:27:39 -07:00
convenience.cc
Pin mmap files in ReadOnlyDB (#4053)
2018-06-27 17:13:34 -07:00
corruption_test.cc
Per-thread unique test db names (#4135)
2018-07-13 17:27:39 -07:00
cuckoo_table_db_test.cc
Per-thread unique test db names (#4135)
2018-07-13 17:27:39 -07:00
db_basic_test.cc
Per-thread unique test db names (#4135)
2018-07-13 17:27:39 -07:00
db_blob_index_test.cc
fix lite build
2017-10-17 08:57:09 -07:00
db_block_cache_test.cc
LRUCache midpoint insertion
2018-05-24 15:57:33 -07:00
db_bloom_filter_test.cc
use per-level perf context for bloom filter related counters (#4581)
2018-10-24 12:21:38 -07:00
db_compaction_filter_test.cc
Remove tests from ROCKSDB_VALGRIND_RUN
2018-05-30 16:15:16 -07:00
db_compaction_test.cc
Fix user comparator receiving internal key (#4575)
2018-10-23 08:14:46 -07:00
db_dynamic_level_test.cc
fix memory leak in two_level_iterator
2018-04-15 17:26:26 -07:00
db_encryption_test.cc
Change RocksDB License
2017-07-15 16:11:23 -07:00
db_filesnapshot.cc
Enable atomic flush (#4023)
2018-10-26 15:08:43 -07:00
db_flush_test.cc
Enable atomic flush (#4023)
2018-10-26 15:08:43 -07:00
db_impl_compaction_flush.cc
Enable atomic flush (#4023)
2018-10-26 15:08:43 -07:00
db_impl_debug.cc
Enable atomic flush (#4023)
2018-10-26 15:08:43 -07:00
db_impl_experimental.cc
Update JobContext. (#3949)
2018-08-03 17:42:34 -07:00
db_impl_files.cc
SetOptions Backup Race Condition (#4108)
2018-07-11 14:57:46 -07:00
db_impl_open.cc
Add read retry support to log reader (#4394)
2018-10-19 11:53:00 -07:00
db_impl_readonly.cc
Use only "local" range tombstones during Get (#4449)
2018-10-24 12:31:12 -07:00
db_impl_readonly.h
allowing CompactFiles to return new file names
2018-03-15 11:58:12 -07:00
db_impl_write.cc
Avoid memtable cut when active memtable is empty (#4595)
2018-10-29 09:45:32 -07:00
db_impl.cc
Enable atomic flush (#4023)
2018-10-26 15:08:43 -07:00
db_impl.h
Enable atomic flush (#4023)
2018-10-26 15:08:43 -07:00
db_info_dumper.cc
avoid copying when iterating using range-based for (#4459)
2018-10-09 17:15:51 -07:00
db_info_dumper.h
Change RocksDB License
2017-07-15 16:11:23 -07:00
db_inplace_update_test.cc
Change RocksDB License
2017-07-15 16:11:23 -07:00
db_io_failure_test.cc
Fix LITE unit tests
2017-07-26 21:11:47 -07:00
db_iter_stress_test.cc
Move prefix_extractor to MutableCFOptions
2018-05-21 14:43:11 -07:00
db_iter_test.cc
Fix regression bug of Prev() with upper bound (#3989)
2018-06-12 16:57:36 -07:00
db_iter.cc
Fix merge operand reappearing when covered by DeleteRange (#4481)
2018-10-10 18:16:12 -07:00
db_iter.h
Add tracing function of Seek() and SeekForPrev() to trace_replay (#4228)
2018-08-10 17:57:40 -07:00
db_iterator_test.cc
Add tracing function of Seek() and SeekForPrev() to trace_replay (#4228)
2018-08-10 17:57:40 -07:00
db_log_iter_test.cc
fix memory leak in two_level_iterator
2018-04-15 17:26:26 -07:00
db_memtable_test.cc
Comment out unused variables
2018-03-05 13:13:41 -08:00
db_merge_operator_test.cc
WriteUnPrepared Txn: Disable seek to snapshot optimization (#3955)
2018-06-27 12:23:07 -07:00
db_options_test.cc
move dump stats to a separate thread (#4382)
2018-10-08 22:54:43 -07:00
db_properties_test.cc
Index value delta encoding (#3983)
2018-08-09 16:58:40 -07:00
db_range_del_test.cc
Lazily initialize RangeDelAggregator stripe map entries (#4497)
2018-10-17 11:47:34 -07:00
db_sst_test.cc
Simplify DBWithMaxSpaceAllowedRandomized (#4235)
2018-08-08 07:27:46 -07:00
db_statistics_test.cc
Change RocksDB License
2017-07-15 16:11:23 -07:00
db_table_properties_test.cc
Allow dynamic modification of window size and deletion trigger (#4403)
2018-09-20 15:15:28 -07:00
db_tailing_iter_test.cc
Remove managed iterator
2018-07-17 14:43:18 -07:00
db_test2.cc
support OnCompactionBegin (#4431)
2018-10-10 17:32:27 -07:00
db_test_util.cc
Enable atomic flush (#4023)
2018-10-26 15:08:43 -07:00
db_test_util.h
Enable atomic flush (#4023)
2018-10-26 15:08:43 -07:00
db_test.cc
Enable atomic flush (#4023)
2018-10-26 15:08:43 -07:00
db_universal_compaction_test.cc
Adapt three unit tests with newer compiler/libraries (#4562)
2018-10-24 08:17:56 -07:00
db_wal_test.cc
Improve log handling when recover without flush (#4405)
2018-09-26 10:37:48 -07:00
db_write_test.cc
Suppress tsan lock-order-inversion on FlushWAL
2018-05-14 21:13:35 -07:00
dbformat_test.cc
Relax VersionStorageInfo::GetOverlappingInputs check (#4050)
2018-07-13 17:42:38 -07:00
dbformat.cc
types: add kEntryBlobIndex for TablePropertiesCollector (#4233)
2018-08-06 18:27:44 -07:00
dbformat.h
s/CacheAllocator/MemoryAllocator/g (#4590)
2018-10-26 14:30:30 -07:00
deletefile_test.cc
Per-thread unique test db names (#4135)
2018-07-13 17:27:39 -07:00
error_handler_test.cc
Fix regression test failures introduced by PR #4164 (#4375)
2018-09-17 13:14:07 -07:00
error_handler.cc
Fix typos in comments (#4456)
2018-10-04 20:46:50 -07:00
error_handler.h
Fix typos in comments (#4456)
2018-10-04 20:46:50 -07:00
event_helpers.cc
Auto recovery from out of space errors (#4164)
2018-09-15 13:43:04 -07:00
event_helpers.h
Auto recovery from out of space errors (#4164)
2018-09-15 13:43:04 -07:00
experimental.cc
comment unused parameters to turn on -Wunused-parameter flag
2018-04-12 17:59:16 -07:00
external_sst_file_basic_test.cc
Support range deletion tombstones in IngestExternalFile SSTs (#3778)
2018-07-13 22:43:09 -07:00
external_sst_file_ingestion_job.cc
Fix typos in comments (#4456)
2018-10-04 20:46:50 -07:00
external_sst_file_ingestion_job.h
Remove random writes from SST file ingestion (#4172)
2018-07-27 16:12:23 -07:00
external_sst_file_test.cc
Pending output file number should be released after bulkload failure (#4145)
2018-07-17 14:13:16 -07:00
fault_injection_test.cc
Per-thread unique test db names (#4135)
2018-07-13 17:27:39 -07:00
file_indexer_test.cc
Comment out unused variables
2018-03-05 13:13:41 -08:00
file_indexer.cc
Change RocksDB License
2017-07-15 16:11:23 -07:00
file_indexer.h
Change RocksDB License
2017-07-15 16:11:23 -07:00
filename_test.cc
Change RocksDB License
2017-07-15 16:11:23 -07:00
flush_job_test.cc
Add support to flush multiple CFs atomically (#4262)
2018-10-15 20:01:17 -07:00
flush_job.cc
Add support to flush multiple CFs atomically (#4262)
2018-10-15 20:01:17 -07:00
flush_job.h
Add support to flush multiple CFs atomically (#4262)
2018-10-15 20:01:17 -07:00
flush_scheduler.cc
Change RocksDB License
2017-07-15 16:11:23 -07:00
flush_scheduler.h
Change RocksDB License
2017-07-15 16:11:23 -07:00
forward_iterator_bench.cc
Per-thread unique test db names (#4135)
2018-07-13 17:27:39 -07:00
forward_iterator.cc
FindFile: use std::lower_bound reduce the repeated code. (#4372)
2018-09-27 10:35:00 -07:00
forward_iterator.h
Comment out unused variables
2018-03-05 13:13:41 -08:00
internal_stats.cc
Add kOptionsStatistics to GetProperty() (#3966)
2018-06-15 17:28:01 -07:00
internal_stats.h
Add kOptionsStatistics to GetProperty() (#3966)
2018-06-15 17:28:01 -07:00
job_context.h
Update JobContext. (#3949)
2018-08-03 17:42:34 -07:00
listener_test.cc
Add listener to sample file io (#3933)
2018-10-12 18:36:11 -07:00
log_format.h
Fix an inaccurate comment (#4315)
2018-08-24 18:13:20 -07:00
log_reader.cc
fix clang analyzer error (#4583)
2018-10-23 22:14:54 -07:00
log_reader.h
Add read retry support to log reader (#4394)
2018-10-19 11:53:00 -07:00
log_test.cc
Add read retry support to log reader (#4394)
2018-10-19 11:53:00 -07:00
log_writer.cc
Pass manual_wal_flush also to the first wal file
2018-05-14 10:57:56 -07:00
log_writer.h
Pass manual_wal_flush also to the first wal file
2018-05-14 10:57:56 -07:00
logs_with_prep_tracker.cc
Skip deleted WALs during recovery
2018-05-03 15:43:09 -07:00
logs_with_prep_tracker.h
Skip deleted WALs during recovery
2018-05-03 15:43:09 -07:00
malloc_stats.cc
Fix compile error with jemalloc (#4488)
2018-10-12 11:50:50 -07:00
malloc_stats.h
Change RocksDB License
2017-07-15 16:11:23 -07:00
manual_compaction_test.cc
Per-thread unique test db names (#4135)
2018-07-13 17:27:39 -07:00
memtable_list_test.cc
Use only "local" range tombstones during Get (#4449)
2018-10-24 12:31:12 -07:00
memtable_list.cc
Cache fragmented range tombstones in BlockBasedTableReader (#4493)
2018-10-25 19:26:44 -07:00
memtable_list.h
Enable atomic flush (#4023)
2018-10-26 15:08:43 -07:00
memtable.cc
Cache fragmented range tombstones in BlockBasedTableReader (#4493)
2018-10-25 19:26:44 -07:00
memtable.h
Use only "local" range tombstones during Get (#4449)
2018-10-24 12:31:12 -07:00
merge_context.h
#3865 fix performance regression introduced by MergeOperator.ShouldMerge (#4266)
2018-08-16 10:58:05 -07:00
merge_helper_test.cc
Change RocksDB License
2017-07-15 16:11:23 -07:00
merge_helper.cc
Range deletion performance improvements + cleanup (#4014)
2018-07-12 14:42:39 -07:00
merge_helper.h
Support pragma once in all header files and cleanup some warnings (#4339)
2018-09-05 18:13:31 -07:00
merge_operator.cc
Change RocksDB License
2017-07-15 16:11:23 -07:00
merge_test.cc
Per-thread unique test db names (#4135)
2018-07-13 17:27:39 -07:00
obsolete_files_test.cc
Modify verification logic of ObsoleteOptionsFileTest (#4218)
2018-08-03 13:57:40 -07:00
options_file_test.cc
Per-thread unique test db names (#4135)
2018-07-13 17:27:39 -07:00
perf_context_test.cc
Add PerfContextByLevel to provide per level perf context information (#4226)
2018-10-17 11:19:40 -07:00
pinned_iterators_manager.h
Change RocksDB License
2017-07-15 16:11:23 -07:00
plain_table_db_test.cc
Per-thread unique test db names (#4135)
2018-07-13 17:27:39 -07:00
pre_release_callback.h
Fix pre_release callback argument list.
2018-04-05 11:12:16 -07:00
prefix_test.cc
Per-thread unique test db names (#4135)
2018-07-13 17:27:39 -07:00
range_del_aggregator_bench.cc
Improve RangeDelAggregator benchmarks (#4395)
2018-09-21 16:13:08 -07:00
range_del_aggregator_test.cc
Truncate range tombstones by leveraging InternalKeys (#4432)
2018-10-09 15:19:38 -07:00
range_del_aggregator.cc
Fix two contrun job failures (#4587)
2018-10-24 20:16:45 -07:00
range_del_aggregator.h
Lazily initialize RangeDelAggregator stripe map entries (#4497)
2018-10-17 11:47:34 -07:00
range_tombstone_fragmenter_test.cc
Cache fragmented range tombstones in BlockBasedTableReader (#4493)
2018-10-25 19:26:44 -07:00
range_tombstone_fragmenter.cc
Cache fragmented range tombstones in BlockBasedTableReader (#4493)
2018-10-25 19:26:44 -07:00
range_tombstone_fragmenter.h
Cache fragmented range tombstones in BlockBasedTableReader (#4493)
2018-10-25 19:26:44 -07:00
read_callback.h
WriteUnPrepared Txn: Disable seek to snapshot optimization (#3955)
2018-06-27 12:23:07 -07:00
repair_test.cc
Acquire lock on DB LOCK file before starting repair. (#4435)
2018-10-12 10:41:54 -07:00
repair.cc
Add read retry support to log reader (#4394)
2018-10-19 11:53:00 -07:00
snapshot_checker.h
Add path to WritableFileWriter. (#4039)
2018-08-23 10:12:58 -07:00
snapshot_impl.cc
Change RocksDB License
2017-07-15 16:11:23 -07:00
snapshot_impl.h
BlobDB: Fix VisibleToActiveSnapshot() (#4236)
2018-08-06 16:57:42 -07:00
table_cache.cc
Cache fragmented range tombstones in BlockBasedTableReader (#4493)
2018-10-25 19:26:44 -07:00
table_cache.h
Truncate range tombstones by leveraging InternalKeys (#4432)
2018-10-09 15:19:38 -07:00
table_properties_collector_test.cc
Add path to WritableFileWriter. (#4039)
2018-08-23 10:12:58 -07:00
table_properties_collector.cc
Comment out unused variables
2018-03-05 13:13:41 -08:00
table_properties_collector.h
Comment out unused variables
2018-03-05 13:13:41 -08:00
transaction_log_impl.cc
Add read retry support to log reader (#4394)
2018-10-19 11:53:00 -07:00
transaction_log_impl.h
WritePrepared Txn: Refactor conf params
2017-11-10 17:28:12 -08:00
version_builder_test.cc
Remove random writes from SST file ingestion (#4172)
2018-07-27 16:12:23 -07:00
version_builder.cc
VersionBuilder: optmize SaveTo() to linear time. (#4366)
2018-09-14 19:43:04 -07:00
version_builder.h
Move prefix_extractor to MutableCFOptions
2018-05-21 14:43:11 -07:00
version_edit_test.cc
Update recovery code for version edits group commit. (#3945)
2018-08-20 14:58:00 -07:00
version_edit.cc
Update recovery code for version edits group commit. (#3945)
2018-08-20 14:58:00 -07:00
version_edit.h
Update recovery code for version edits group commit. (#3945)
2018-08-20 14:58:00 -07:00
version_set_test.cc
Dynamic level to adjust level multiplier when write is too heavy (#4338)
2018-10-22 10:21:47 -07:00
version_set.cc
Cache fragmented range tombstones in BlockBasedTableReader (#4493)
2018-10-25 19:26:44 -07:00
version_set.h
Use only "local" range tombstones during Get (#4449)
2018-10-24 12:31:12 -07:00
wal_manager_test.cc
Add path to WritableFileWriter. (#4039)
2018-08-23 10:12:58 -07:00
wal_manager.cc
Add read retry support to log reader (#4394)
2018-10-19 11:53:00 -07:00
wal_manager.h
Fix memleak when DB::DeleteFile()
2018-01-11 18:57:33 -08:00
write_batch_base.cc
Change RocksDB License
2017-07-15 16:11:23 -07:00
write_batch_internal.h
WriteUnPrepared: Add new WAL marker kTypeBeginUnprepareXID (#4069)
2018-06-28 18:58:29 -07:00
write_batch_test.cc
WriteUnPrepared: Add support for recovering WriteUnprepared transactions (#4078)
2018-07-06 17:59:13 -07:00
write_batch.cc
WriteBatch::Iterate wrongly returns Status::Corruption (#4478)
2018-10-10 20:57:27 -07:00
write_callback_test.cc
Per-thread unique test db names (#4135)
2018-07-13 17:27:39 -07:00
write_callback.h
Change RocksDB License
2017-07-15 16:11:23 -07:00
write_controller_test.cc
Change RocksDB License
2017-07-15 16:11:23 -07:00
write_controller.cc
Change RocksDB License
2017-07-15 16:11:23 -07:00
write_controller.h
Change RocksDB License
2017-07-15 16:11:23 -07:00
write_thread.cc
Handle mixed slowdown/no_slowdown writer properly (#4475)
2018-10-09 22:52:40 -07:00
write_thread.h
Handle mixed slowdown/no_slowdown writer properly (#4475)
2018-10-09 22:52:40 -07:00