RocksDB v5.2.0 Release Notes
Release Date: 2017-08-02 // over 6 years ago-
Public API Change
- ๐ NewLRUCache() will determine number of shard bits automatically based on capacity, if the user doesn't pass one. This also impacts the default block cache when the user doesn't explicit provide one.
- ๐ Change the default of delayed slowdown value to 16MB/s and further increase the L0 stop condition to 36 files.
- Options::use_direct_writes and Options::use_direct_reads are now ready to use.
- (Experimental) Two-level indexing that partition the index and creates a 2nd level index on the partitions. The feature can be enabled by setting kTwoLevelIndexSearch as IndexType and configuring index_per_partition.
๐ New Features
- โ Added new overloaded function GetApproximateSizes that allows to specify if memtable stats should be computed only without computing SST files' stats approximations.
- โ Added new function GetApproximateMemTableStats that approximates both number of records and size of memtables.
- โ Add Direct I/O mode for SST file I/O
๐ Bug Fixes
- RangeSync() should work if ROCKSDB_FALLOCATE_PRESENT is not set
- ๐ Fix wrong results in a data race case in Get()
- ๐ Some fixes related to 2PC.
- ๐ Fix bugs of data corruption in direct I/O