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rocksdb/docs/_posts/2017-06-29-rocksdb-5-5-1-released.markdown
Aaron Gao 521b4c28b9 rocksdb 5.5.1 release post 
Summary:
https://github.com/facebook/rocksdb/releases/tag/v5.5.1
Closes https://github.com/facebook/rocksdb/pull/2522

Differential Revision: D5365355

Pulled By: lightmark

fbshipit-source-id: 63371a98ebc7429766fd86dc27c1ea35950c98f5
2017-07-05 16:41:30 -07:00

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RocksDB 5.5.1 Released! post lightmark blog

New Features

  • FIFO compaction to support Intra L0 compaction too with CompactionOptionsFIFO.allow_compaction=true.
  • Statistics::Reset() to reset user stats.
  • ldb add option --try_load_options, which will open DB with its own option file.
  • Introduce WriteBatch::PopSavePoint to pop the most recent save point explicitly.
  • Support dynamically change max_open_files option via SetDBOptions()
  • Added DB::CreateColumnFamilie() and DB::DropColumnFamilies() to bulk create/drop column families.
  • Add debugging function GetAllKeyVersions to see internal versions of a range of keys.
  • Support file ingestion with universal compaction style
  • Support file ingestion behind with option allow_ingest_behind
  • New option enable_pipelined_write which may improve write throughput in case writing from multiple threads and WAL enabled.

Bug Fixes

  • Fix the bug that Direct I/O uses direct reads for non-SST file
  • Fix the bug that flush doesn't respond to fsync result