fork of https://github.com/oxigraph/rocksdb and https://github.com/facebook/rocksdb for nextgraph and oxigraph

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Changyu Bi 601320164b Trivially move files down when opening db with level_compaction_dynamic_l… (#11321) ... Summary: …evel_bytes During DB open, if a column family uses level compaction with level_compaction_dynamic_level_bytes=true, trivially move its files down in the LSM such that the bottommost files are in Lmax, the second from bottommost level files are in Lmax-1 and so on. This is aimed to make it easier to migrate level_compaction_dynamic_level_bytes from false to true. Before this change, a full manual compaction is suggested for such migration. After this change, user can just restart DB to turn on this option. db_crashtest.py is updated to randomly choose value for level_compaction_dynamic_level_bytes. Note that there may still be too many unnecessary levels if a user is migrating from universal compaction or level compaction with a smaller level multiplier. A full manual compaction may still be needed in that case before some PR that automatically drain unnecessary levels like https://github.com/facebook/rocksdb/issues/3921 lands. Eventually we may want to change the default value of option level_compaction_dynamic_level_bytes to true. Pull Request resolved: https://github.com/facebook/rocksdb/pull/11321 Test Plan: 1. Added unit tests. 2. Crash test: ran a variation of db_crashtest.py (like 32516507e77521ae887e45091b69139e32e8efb7) that turns level_compaction_dynamic_level_bytes on and off and switches between LC and UC for the same DB. TODO: Update `OptionChangeMigration`, either after this PR or https://github.com/facebook/rocksdb/issues/3921. Reviewed By: ajkr Differential Revision: D44341930 Pulled By: cbi42 fbshipit-source-id: 013de19a915c6a0502be569f07c4cc8f1c3c6be2		2 years ago
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compacted_db_impl.cc	Remove RocksDB LITE (#11147)	2 years ago
compacted_db_impl.h	Remove RocksDB LITE (#11147)	2 years ago
db_impl.cc	Fix bug of prematurely excluded CF in atomic flush contains unflushed data that should've been included in the atomic flush (#11148)	2 years ago
db_impl.h	Fix bug of prematurely excluded CF in atomic flush contains unflushed data that should've been included in the atomic flush (#11148)	2 years ago
db_impl_compaction_flush.cc	Fix bug of prematurely excluded CF in atomic flush contains unflushed data that should've been included in the atomic flush (#11148)	2 years ago
db_impl_debug.cc	Fix bug of prematurely excluded CF in atomic flush contains unflushed data that should've been included in the atomic flush (#11148)	2 years ago
db_impl_experimental.cc	Remove RocksDB LITE (#11147)	2 years ago
db_impl_files.cc	Simplify TEST_F(DBWALTest, FixSyncWalOnObseletedWalWithNewManifestCausingMissingWAL) (#11186)	2 years ago
db_impl_open.cc	Trivially move files down when opening db with level_compaction_dynamic_l… (#11321)	2 years ago
db_impl_readonly.cc	Remove RocksDB LITE (#11147)	2 years ago
db_impl_readonly.h	Remove RocksDB LITE (#11147)	2 years ago
db_impl_secondary.cc	Remove RocksDB LITE (#11147)	2 years ago
db_impl_secondary.h	Remove RocksDB LITE (#11147)	2 years ago
db_impl_write.cc	New stat rocksdb.{cf|db}-write-stall-stats exposed in a structural way (#11300)	2 years ago