rocksdb

Bug Fixes

• Fix incorrect dropping of deletions issue with FIFO compaction.
• Fix LITE build compiler error with missing abort().

Bug Fixes

• Fix incorrect dropping of deletions issue with FIFO compaction.
• Fix LITE build compiler error with missing abort().

5.4.10 (08/12/2017)

Bug Fixes

• Fix incorrect dropping of deletions during intra-L0 compaction.

5.4.10 (08/12/2017)

Bug Fixes

• Fix incorrect dropping of deletions during intra-L0 compaction.

5.5.6 (08/12/2017)

Bug Fixes

• Fix incorrect dropping of deletions during intra-L0 compaction.

5.5.6 (08/12/2017)

Bug Fixes

• Fix incorrect dropping of deletions during intra-L0 compaction.

5.6.2 (08/12/2017)

Bug Fixes

• Fix incorrect dropping of deletions during intra-L0 compaction.

5.6.2 (08/12/2017)

Bug Fixes

• Fix incorrect dropping of deletions during intra-L0 compaction.

5.7.1 (08/12/2017)

Bug Fixes

• Fix incorrect dropping of deletions during intra-L0 compaction.

5.7.1 (08/12/2017)

Bug Fixes

• Fix incorrect dropping of deletions during intra-L0 compaction.

5.6.1 (07/25/2017)

Bug Fixes

• Fix lite build.

5.6.0 (06/06/2017)

Public API Change

• Scheduling flushes and compactions in the same thread pool is no longer supported by setting max_background_flushes=0. Instead, users can achieve this by configuring their high-pri thread pool to have zero threads.
• Replace Options::max_background_flushes, Options::max_background_compactions, and Options::base_background_compactions all with Options::max_background_jobs, which automatically decides how many threads to allocate towards flush/compaction.
• options.delayed_write_rate by default take the value of options.rate_limiter rate.
• Replace global variable IOStatsContext iostats_context with IOStatsContext* get_iostats_context(); replace global variable PerfContext perf_context with PerfContext* get_perf_context().

New Features

• Change ticker/histogram statistics implementations to use core-local storage. This improves aggregation speed compared to our previous thread-local approach, particularly for applications with many threads.
• Users can pass a cache object to write buffer manager, so that they can cap memory usage for memtable and block cache using one single limit.
• Flush will be triggered when 7/8 of the limit introduced by write_buffer_manager or db_write_buffer_size is triggered, so that the hard threshold is hard to hit.
• Introduce WriteOptions.low_pri. If it is true, low priority writes will be throttled if the compaction is behind.
• DB::IngestExternalFile() now supports ingesting files into a database containing range deletions.

Bug Fixes

• Shouldn't ignore return value of fsync() in flush.

5.6.1 release.

• Change license section of java/rocksjni.pom
• Clear up some files still mentioning PATENTS file

5.5.4 (07/18/2017)

• Change License to Apache + GPLv2

5.5.3 release.

Bug Fixes

• Fix LITE build error.

5.5.2 release.

Re-tagging 5.5.1 release. No changes from 5.5.1.

New Features

• FIFO compaction to support Intra L0 compaction too with CompactionOptionsFIFO.allow_compaction=true.
• DB::ResetStats() to reset internal stats.
• 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

Bug Fixes

• Shouldn't ignore return value of fsync() in flush.