[ https://issues.apache.org/jira/browse/FLINK-8790?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Stefan Richter closed FLINK-8790. --------------------------------- Resolution: Fixed Merged in: master: bbf7ff2273 > Improve performance for recovery from incremental checkpoint > ------------------------------------------------------------ > > Key: FLINK-8790 > URL: https://issues.apache.org/jira/browse/FLINK-8790 > Project: Flink > Issue Type: Improvement > Components: State Backends, Checkpointing > Affects Versions: 1.5.0 > Reporter: Sihua Zhou > Assignee: Sihua Zhou > Priority: Major > Fix For: 1.6.0 > > > When there are multi state handle to be restored, we can improve the > performance as follow: > 1. Choose the best state handle to init the target db > 2. Use the other state handles to create temp db, and clip the db according > to the target key group range (via rocksdb.deleteRange()), this can help use > get rid of the `key group check` in > `data insertion loop` and also help us get rid of traversing the useless > record. -- This message was sent by Atlassian JIRA (v7.6.3#76005)