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https://issues.apache.org/jira/browse/FLINK-35933?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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ASF GitHub Bot updated FLINK-35933:
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Labels: pull-request-available (was: )
> Skip distributing maxAllowedWatermark if there are no subtasks
> --------------------------------------------------------------
>
> Key: FLINK-35933
> URL: https://issues.apache.org/jira/browse/FLINK-35933
> Project: Flink
> Issue Type: Improvement
> Components: Runtime / Coordination
> Reporter: Roman Khachatryan
> Assignee: Roman Khachatryan
> Priority: Major
> Labels: pull-request-available
> Fix For: 1.20.0
>
>
> On JM, `SourceCoordinator.announceCombinedWatermark` executes unnecessary if
> there are no subtasks to distribute maxAllowedWatermark. This involves Heap
> and ConcurrentHashMap accesses and lots of logging.
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