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Yun Tang updated FLINK-26560: ----------------------------- Priority: Major (was: Minor) > Make the threshold of the overlap fraction of incremental restoring > configurable > -------------------------------------------------------------------------------- > > Key: FLINK-26560 > URL: https://issues.apache.org/jira/browse/FLINK-26560 > Project: Flink > Issue Type: Improvement > Components: Runtime / State Backends > Affects Versions: 1.15.0 > Reporter: Yanfei Lei > Assignee: Yanfei Lei > Priority: Major > > Currently, the threshold of the overlap fraction of incremental restoring > `OVERLAP_FRACTION_THRESHOLD` is a hard-coded, fixed value. > > {code:java} > public class RocksDBIncrementalCheckpointUtils { > /** > * The threshold of the overlap fraction of the handle's key-group range > with target key-group > * range to be an initial handle. > */ > private static final double OVERLAP_FRACTION_THRESHOLD = 0.75; > ... > } {code} > > `OVERLAP_FRACTION_THRESHOLD` is used to control how to restore a state > handle, different thresholds can affect the performance of restoring. The > behavior of deletion in restoring has been changed after FLINK-21321, the old > threshold no longer fits the current situation. > To make it easier to modify the threshold according to different situations, > changing `OVERLAP_FRACTION_THRESHOLD` to be configurable is suggested. -- This message was sent by Atlassian Jira (v8.20.1#820001)