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https://issues.apache.org/jira/browse/FLINK-1577?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14345300#comment-14345300
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Robert Metzger commented on FLINK-1577:
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Thank you!
> Misleading error messages when cancelling tasks
> -----------------------------------------------
>
> Key: FLINK-1577
> URL: https://issues.apache.org/jira/browse/FLINK-1577
> Project: Flink
> Issue Type: Improvement
> Components: Distributed Runtime
> Affects Versions: master
> Reporter: Ufuk Celebi
>
> A user running a Flink version before bec9c4d ran into a job manager failure
> (fixed in bec9c4d), which lead to restarting the JM and cancelling/clearing
> all tasks on the TMs.
> The logs of the TMs were inconclusive. I think part of that has been fixed by
> now, e.g. there is a log message when cancelAndClearEverything is called, but
> the task thread (RuntimeEnvironment) always logs an error when interrupted
> during the run method -- even if the task gets cancelled.
> I think these error messages are misleading and only the root cause is
> important (i.e. non-failed tasks should be silently cancelled).
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