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https://issues.apache.org/jira/browse/FLINK-4715?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15611336#comment-15611336
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ASF GitHub Bot commented on FLINK-4715:
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Github user uce commented on the issue:
https://github.com/apache/flink/pull/2652
OK thanks. I addressed one last issue with shutting down the watch dog
thread (it was lingering around sleeping and only noticed that the task has
terminated after that sleep... now the task canceler interrupts the watchdog
when everything works as expected and the watch dog thread terminates early).
I've also backported this to the `release-1.1` branch.
> TaskManager should commit suicide after cancellation failure
> ------------------------------------------------------------
>
> Key: FLINK-4715
> URL: https://issues.apache.org/jira/browse/FLINK-4715
> Project: Flink
> Issue Type: Improvement
> Components: TaskManager
> Affects Versions: 1.2.0
> Reporter: Till Rohrmann
> Assignee: Ufuk Celebi
> Fix For: 1.2.0
>
>
> In case of a failed cancellation, e.g. the task cannot be cancelled after a
> given time, the {{TaskManager}} should kill itself. That way we guarantee
> that there is no resource leak.
> This behaviour acts as a safety-net against faulty user code.
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