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https://issues.apache.org/jira/browse/FLINK-9421?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16488212#comment-16488212
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vinoyang commented on FLINK-9421:
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[~till.rohrmann] I have releases the assignee, please go ahead thanks.
> RunningJobsRegistry entries are not cleaned up after job termination
> --------------------------------------------------------------------
>
> Key: FLINK-9421
> URL: https://issues.apache.org/jira/browse/FLINK-9421
> Project: Flink
> Issue Type: Bug
> Components: Distributed Coordination
> Affects Versions: 1.5.0, 1.6.0
> Reporter: Till Rohrmann
> Priority: Critical
>
> Currently, the {{Dispatcher}} does not clean up the {{RunningJobsRegistry}}
> after the job has finished. The consequence is that a ZNode with the JobID
> and a state num per job remains in ZooKeeper.
> We should clean up these ZNodes to avoid a resource leak.
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