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Zhongyi Xie baa5302447 Avoid double-compacting data in bottom level in manual compactions (#5138) 
Summary:
Depending on the config, manual compaction (leveled compaction style) does following compactions:
L0->L1
L1->L2
...
Ln-1 -> Ln
Ln -> Ln
The final Ln -> Ln compaction is partly unnecessary as it recompacts all the files that were just generated by the Ln-1 -> Ln. We should avoid recompacting such files. This rule should be applied to Lmax only.
Resolves issue https://github.com/facebook/rocksdb/issues/4995
Pull Request resolved: https://github.com/facebook/rocksdb/pull/5138

Differential Revision: D14940106

Pulled By: miasantreble

fbshipit-source-id: 8d3cf5507a17e76f3333cfd4bac5256d005636e5
2019-04-16 23:32:20 -07:00
..
backupable Remove some "using std::..." from header files. (#5113) 2019-03-27 10:28:21 -07:00
blob_db Introduce a new MultiGet batching implementation (#5011) 2019-04-11 14:28:26 -07:00
cassandra Apply modernize-use-override (2nd iteration) 2019-02-14 14:41:36 -08:00
checkpoint Apply modernize-use-override (2nd iteration) 2019-02-14 14:41:36 -08:00
compaction_filters Comment out unused variables 2018-03-05 13:13:41 -08:00
convenience Change RocksDB License 2017-07-15 16:11:23 -07:00
leveldb_options Change RocksDB License 2017-07-15 16:11:23 -07:00
memory Per-thread unique test db names (#4135) 2018-07-13 17:27:39 -07:00
merge_operators Apply modernize-use-override (2nd iteration) 2019-02-14 14:41:36 -08:00
option_change_migration Avoid double-compacting data in bottom level in manual compactions (#5138) 2019-04-16 23:32:20 -07:00
options Make it easier for users to load options from option file and set shared block cache. (#5063) 2019-03-21 16:25:28 -07:00
persistent_cache Removed const fields in copyable classes (#5095) 2019-04-05 15:40:30 -07:00
simulator_cache Apply modernize-use-override (2nd iteration) 2019-02-14 14:41:36 -08:00
table_properties_collectors Reduce runtime of compact_on_deletion_collector_test (#4779) 2018-12-13 14:47:08 -08:00
trace Add the max trace file size limitation option to Tracing (#4610) 2018-11-27 14:27:05 -08:00
transactions Improve transaction lock details (#5193) 2019-04-15 10:44:03 -07:00
ttl Apply modernize-use-override (2nd iteration) 2019-02-14 14:41:36 -08:00
write_batch_with_index Apply modernize-use-override (2nd iteration) 2019-02-14 14:41:36 -08:00
debug.cc Remove v1 RangeDelAggregator (#4778) 2018-12-17 17:33:46 -08:00
env_librados_test.cc Update all unique/shared_ptr instances to be qualified with namespace std (#4638) 2018-11-09 11:19:58 -08:00
env_librados.cc Suppress lint in old files 2018-01-29 12:56:42 -08:00
env_librados.md Add EnvLibrados - RocksDB Env of RADOS (#1222) 2016-07-21 11:16:34 -07:00
env_mirror_test.cc Update all unique/shared_ptr instances to be qualified with namespace std (#4638) 2018-11-09 11:19:58 -08:00
env_mirror.cc Update all unique/shared_ptr instances to be qualified with namespace std (#4638) 2018-11-09 11:19:58 -08:00
env_timed_test.cc fix memory leak in two_level_iterator 2018-04-15 17:26:26 -07:00
env_timed.cc Apply modernize-use-override (2nd iteration) 2019-02-14 14:41:36 -08:00
merge_operators.h Support StringAppendOperator(delimiter_char) constructor in java-api 2018-03-08 16:17:47 -08:00
object_registry_test.cc fix memory leak in two_level_iterator 2018-04-15 17:26:26 -07:00
util_merge_operators_test.cc Change RocksDB License 2017-07-15 16:11:23 -07:00