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https://issues.apache.org/jira/browse/MAPREDUCE-1451?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Todd Lipcon updated MAPREDUCE-1451:
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Attachment: capacity-lock-inversion-3.png
capacity-lock-inversion-2.png
capacity-lock-inversion.png
> Minor lock inversions in capacity scheduler
> -------------------------------------------
>
> Key: MAPREDUCE-1451
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-1451
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Components: contrib/capacity-sched
> Affects Versions: 0.22.0
> Reporter: Todd Lipcon
> Attachments: capacity-lock-inversion-2.png,
> capacity-lock-inversion-3.png, capacity-lock-inversion.png
>
>
> Running jcarder on the contrib unit tests yielded 3 lock inversions in the
> capacity scheduler. I don't know enough about the scheduler to know if
> they're problems - they look harmless enough since they seem to all be
> concerned with the startup code, which probably doesn't run concurrently with
> other stuff. Attaching the images of the cycles here.
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