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

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Maysam Yabandeh 199fabc197 WritePrepared: non-atomic commit of delayed prepared (#4947) ... Summary: Commit of delayed prepared has two non-atomic steps: add to commit cache, remove from delayed_prepared_. Similarly in ::IsInSnapshot we read from commit cache first and then look into delayed_prepared_. Due to non-atomicity thus the reader might not find the prep_seq that is just committed neither in commit cache nor in delayed_prepared_. To fix that i) we check if there was any delayed prepared BEFORE looking into commit cache, ii) if there was, we complete the search steps to be these: i) commit cache, ii) delayed prepared, commit cache again. In this way if the first query to commit cache missed the commit, the 2nd will catch it. The cost of the redundant read from commit cache is paid only if delayed_prepared_ is nonempty which should be a very rare scenario. Pull Request resolved: https://github.com/facebook/rocksdb/pull/4947 Differential Revision: D13952754 Pulled By: maysamyabandeh fbshipit-source-id: 8f47826b13f8ce154398d842028342423f4ca2b2		6 years ago
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backupable	Backup engine support for direct I/O reads (#4640)	6 years ago
blob_db	Always delete Blob DB files in the background (#4928)	6 years ago
cassandra	fix tombstone collectable test (#4755)	6 years ago
checkpoint	Enable checkpoint of read-only db (#4681)	6 years ago
compaction_filters	Comment out unused variables	7 years ago
convenience	Change RocksDB License	8 years ago
leveldb_options	Change RocksDB License	8 years ago
lua	Per-thread unique test db names (#4135)	7 years ago
memory	Per-thread unique test db names (#4135)	7 years ago
merge_operators	Support pragma once in all header files and cleanup some warnings (#4339)	6 years ago
option_change_migration	comment unused parameters to turn on -Wunused-parameter flag	7 years ago
options	Update all unique/shared_ptr instances to be qualified with namespace std (#4638)	6 years ago
persistent_cache	Update all unique/shared_ptr instances to be qualified with namespace std (#4638)	6 years ago
simulator_cache	Add path to WritableFileWriter. (#4039)	6 years ago
table_properties_collectors	Reduce runtime of compact_on_deletion_collector_test (#4779)	6 years ago
trace	Add the max trace file size limitation option to Tracing (#4610)	6 years ago
transactions	WritePrepared: non-atomic commit of delayed prepared (#4947)	6 years ago
ttl	Update all unique/shared_ptr instances to be qualified with namespace std (#4638)	6 years ago
write_batch_with_index	Revert "BaseDeltaIterator: always check valid() before accessing key(… (#4744)	6 years ago
debug.cc	Remove v1 RangeDelAggregator (#4778)	6 years ago
env_librados.cc	Suppress lint in old files	7 years ago
env_librados.md	Add EnvLibrados - RocksDB Env of RADOS (#1222)	9 years ago
env_librados_test.cc	Update all unique/shared_ptr instances to be qualified with namespace std (#4638)	6 years ago
env_mirror.cc	Update all unique/shared_ptr instances to be qualified with namespace std (#4638)	6 years ago
env_mirror_test.cc	Update all unique/shared_ptr instances to be qualified with namespace std (#4638)	6 years ago
env_timed.cc	Update all unique/shared_ptr instances to be qualified with namespace std (#4638)	6 years ago
env_timed_test.cc	fix memory leak in two_level_iterator	7 years ago
merge_operators.h	Support StringAppendOperator(delimiter_char) constructor in java-api	7 years ago
object_registry_test.cc	fix memory leak in two_level_iterator	7 years ago
util_merge_operators_test.cc	Change RocksDB License	8 years ago