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https://issues.apache.org/jira/browse/SPARK-14915?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15261252#comment-15261252
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Jason Moore commented on SPARK-14915:
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That's exactly my current thinking too. But even if keep allowing some tasks
to be retried without limit in certain contexts (the current two I'm aware of
are: commit denied on speculative tasks or an executor lost because of a YARN
de-allocation), it does seem that the commit denied is often happening when
another copy has already succeeded. I'm about to do some testing on this now,
and not re-queuing in this scenario.
> Tasks that fail due to CommitDeniedException (a side-effect of speculation)
> can cause job to never complete
> -----------------------------------------------------------------------------------------------------------
>
> Key: SPARK-14915
> URL: https://issues.apache.org/jira/browse/SPARK-14915
> Project: Spark
> Issue Type: Bug
> Affects Versions: 1.6.2
> Reporter: Jason Moore
> Priority: Critical
>
> In SPARK-14357, code was corrected towards the originally intended behavior
> that a CommitDeniedException should not count towards the failure count for a
> job. After having run with this fix for a few weeks, it's become apparent
> that this behavior has some unintended consequences - that a speculative task
> will continuously receive a CDE from the driver, now causing it to fail and
> retry over and over without limit.
> I'm thinking we could put a task that receives a CDE from the driver, into a
> TaskState.FINISHED or some other state to indicated that the task shouldn't
> be resubmitted by the TaskScheduler. I'd probably need some opinions on
> whether there are other consequences for doing something like this.
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