diff options
Diffstat (limited to 'src/rocksdb/docs/_posts/2016-04-26-rocksdb-4-5-1-released.markdown')
| -rw-r--r-- | src/rocksdb/docs/_posts/2016-04-26-rocksdb-4-5-1-released.markdown | 60 |
1 files changed, 60 insertions, 0 deletions
diff --git a/src/rocksdb/docs/_posts/2016-04-26-rocksdb-4-5-1-released.markdown b/src/rocksdb/docs/_posts/2016-04-26-rocksdb-4-5-1-released.markdown new file mode 100644 index 00000000..247768d3 --- /dev/null +++ b/src/rocksdb/docs/_posts/2016-04-26-rocksdb-4-5-1-released.markdown @@ -0,0 +1,60 @@ +--- +title: RocksDB 4.5.1 Released! +layout: post +author: sdong +category: blog +redirect_from: + - /blog/3179/rocksdb-4-5-1-released/ +--- + +## 4.5.1 (3/25/2016) + +### Bug Fixes + + * Fix failures caused by the destorying order of singleton objects. + +<br/> + +## 4.5.0 (2/5/2016) + +### Public API Changes + + * Add a new perf context level between kEnableCount and kEnableTime. Level 2 now does not include timers for mutexes. + * Statistics of mutex operation durations will not be measured by default. If you want to have them enabled, you need to set Statistics::stats_level_ to kAll. + * DBOptions::delete_scheduler and NewDeleteScheduler() are removed, please use DBOptions::sst_file_manager and NewSstFileManager() instead + +### New Features + * ldb tool now supports operations to non-default column families. + * Add kPersistedTier to ReadTier. This option allows Get and MultiGet to read only the persited data and skip mem-tables if writes were done with disableWAL = true. + * Add DBOptions::sst_file_manager. Use NewSstFileManager() in include/rocksdb/sst_file_manager.h to create a SstFileManager that can be used to track the total size of SST files and control the SST files deletion rate. + +<br/> + +<!--truncate--> + +## 4.4.0 (1/14/2016) + +### Public API Changes + + * Change names in CompactionPri and add a new one. + * Deprecate options.soft_rate_limit and add options.soft_pending_compaction_bytes_limit. + * If options.max_write_buffer_number > 3, writes will be slowed down when writing to the last write buffer to delay a full stop. + * Introduce CompactionJobInfo::compaction_reason, this field include the reason to trigger the compaction. + * After slow down is triggered, if estimated pending compaction bytes keep increasing, slowdown more. + * Increase default options.delayed_write_rate to 2MB/s. + * Added a new parameter --path to ldb tool. --path accepts the name of either MANIFEST, SST or a WAL file. Either --db or --path can be used when calling ldb. + +<br/> + +## 4.3.0 (12/8/2015) + +### New Features + + * CompactionFilter has new member function called IgnoreSnapshots which allows CompactionFilter to be called even if there are snapshots later than the key. + * RocksDB will now persist options under the same directory as the RocksDB database on successful DB::Open, CreateColumnFamily, DropColumnFamily, and SetOptions. + * Introduce LoadLatestOptions() in rocksdb/utilities/options_util.h. This function can construct the latest DBOptions / ColumnFamilyOptions used by the specified RocksDB intance. + * Introduce CheckOptionsCompatibility() in rocksdb/utilities/options_util.h. This function checks whether the input set of options is able to open the specified DB successfully. + +### Public API Changes + + * When options.db_write_buffer_size triggers, only the column family with the largest column family size will be flushed, not all the column families. |