Details
-
Improvement
-
Status: Closed
-
Critical
-
Resolution: Fixed
-
1.4.0
-
None
Description
Currently, almost every time we want to iterator a RocksDBMapState we need to do seek at least 2 times (Seek is a poor performance action for rocksdb cause it can't use the bloomfilter). This is because `RocksDBMapIterator` use a `cacheEntries` to cache the seek values every time and the `cacheEntries`'s init size is 1.
Attachments
Attachments
Issue Links
- causes
-
FLINK-13034 Improve the performance when checking whether mapstate is empty for RocksDBStateBackend
- Closed
- links to