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

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Andrew Kryczka 9167ece586 Snapshot release triggered compaction without multiple tombstones (#8357) ... Summary: This is a duplicate of https://github.com/facebook/rocksdb/issues/4948 by mzhaom to fix tests after rebase. This change is a follow-up to https://github.com/facebook/rocksdb/issues/4927, which made this possible by allowing tombstone dropping/seqnum zeroing optimizations on the last key in the compaction. Now the `largest_seqno != 0` condition suffices to prevent snapshot release triggered compaction from entering an infinite loop. The issues caused by the extraneous condition `level_and_file.second->num_deletions > 1` are: - files could have `largest_seqno > 0` forever making it impossible to tell they cannot contain any covering keys - it doesn't trigger compaction when there are many overwritten keys. Some MyRocks use case actually doesn't use Delete but instead calls Put with empty value to "delete" keys, so we'd like to be able to trigger compaction in this case too. Pull Request resolved: https://github.com/facebook/rocksdb/pull/8357 Test Plan: - make check Reviewed By: jay-zhuang Differential Revision: D28855340 Pulled By: ajkr fbshipit-source-id: a261b51eecafec492499e6d01e8e43112f801798		4 years ago
..
blob_compaction_filter.cc	Use SystemClock* instead of std::shared_ptr<SystemClock> in lower level routines (#8033)	4 years ago
blob_compaction_filter.h	Use SystemClock* instead of std::shared_ptr<SystemClock> in lower level routines (#8033)	4 years ago
blob_db.cc	Destroy any ColumnFamilyHandles in BlobDB::Open upon error (#6763)	5 years ago
blob_db.h	Move kNoExpiration to blob_db.h (#7018)	4 years ago
blob_db_gc_stats.h	Replace namespace name "rocksdb" with ROCKSDB_NAMESPACE (#6433)	5 years ago
blob_db_impl.cc	Use SystemClock* instead of std::shared_ptr<SystemClock> in lower level routines (#8033)	4 years ago
blob_db_impl.h	Use SystemClock* instead of std::shared_ptr<SystemClock> in lower level routines (#8033)	4 years ago
blob_db_impl_filesnapshot.cc	Expose the start of the expiration range for TTL blob files through LiveFileMetaData (#7365)	4 years ago
blob_db_iterator.h	Use SystemClock* instead of std::shared_ptr<SystemClock> in lower level routines (#8033)	4 years ago
blob_db_listener.h	Replace namespace name "rocksdb" with ROCKSDB_NAMESPACE (#6433)	5 years ago
blob_db_test.cc	Snapshot release triggered compaction without multiple tombstones (#8357)	4 years ago
blob_dump_tool.cc	Make ImmutableOptions struct that inherits from ImmutableCFOptions and ImmutableDBOptions (#8262)	4 years ago
blob_dump_tool.h	Move blob_log_{format,reader,writer}.{cc,h} to db/blob/ (#6960)	5 years ago
blob_file.cc	Remove Legacy and Custom FileWrapper classes from header files (#7851)	4 years ago
blob_file.h	Remove Legacy and Custom FileWrapper classes from header files (#7851)	4 years ago