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https://issues.apache.org/jira/browse/FLINK-8504?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16345880#comment-16345880
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ASF GitHub Bot commented on FLINK-8504:
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Github user asfgit closed the pull request at:
https://github.com/apache/flink/pull/5361
> TaskExecutor does not properly deregisters JobManager from JobLeaderService
> ---------------------------------------------------------------------------
>
> Key: FLINK-8504
> URL: https://issues.apache.org/jira/browse/FLINK-8504
> Project: Flink
> Issue Type: Bug
> Components: Distributed Coordination
> Affects Versions: 1.5.0
> Reporter: Till Rohrmann
> Assignee: Till Rohrmann
> Priority: Critical
> Labels: flip-6
> Fix For: 1.5.0
>
>
> The {{TaskExecutor}} should deregister jobs from the {{JobLeaderService}}
> once it no longer holds slots for this job. The problem is that before
> unregistering the job from the {{JobLeaderService}} in
> {{TaskExecutor#freeInternal}}, the actual slot is freed which also removes
> the {{JobID}} from the slot. Therefore, we lose the information to which job
> the slot belonged. An easy solution would be to return a {{SlotInformation}}
> object instead of the {{TaskSlot}} from {{TaskSlotTable#freeSlot}} which
> contains the respective information.
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