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From "Robert Metzger (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (FLINK-1577) Misleading error messages when cancelling tasks
Date Tue, 03 Mar 2015 14:55:04 GMT

    [ https://issues.apache.org/jira/browse/FLINK-1577?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14345169#comment-14345169

Robert Metzger commented on FLINK-1577:

Another user was affected by this.
Would be good to resolve this, because the messages are indeed misleading.

> 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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