Sihua Zhou created FLINK-8639: --------------------------------- Summary: Fix always need to seek multiple times when iterator RocksDBMapState Key: FLINK-8639 URL: https://issues.apache.org/jira/browse/FLINK-8639 Project: Flink Issue Type: Improvement Components: State Backends, Checkpointing Affects Versions: 1.4.0 Reporter: Sihua Zhou Assignee: Sihua Zhou Fix For: 1.5.0
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. -- This message was sent by Atlassian JIRA (v7.6.3#76005)