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https://issues.apache.org/jira/browse/UIMA-3378?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jim Challenger closed UIMA-3378.
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Resolution: Fixed
> DUCC RM Race if job canceled quickly
> ------------------------------------
>
> Key: UIMA-3378
> URL: https://issues.apache.org/jira/browse/UIMA-3378
> Project: UIMA
> Issue Type: Bug
> Components: DUCC
> Affects Versions: 1.0-Ducc
> Reporter: Jim Challenger
> Assignee: Jim Challenger
> Priority: Minor
> Fix For: 1.0-Ducc
>
>
> If a job is canceled immediately after it is submitted it can arrive at RM in
> state WaitingForResources AND in the same scheduling epoch, a message
> indicated the job is canceled can arrive. WaitingForResources usually causes
> a job to be entered into the RM scheduling lists, but Completed causes it to
> be deleted and overrides the WaitingForResources. The bug is that Completed
> does not check to see if the job ever did actually get entered, and bam! NPE.
> The fix is simple, in Scheduler. processCompletion, if the indicated job
> isn't found in the scheduling list, just ignore and return.
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