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https://issues.apache.org/jira/browse/YARN-3873?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14626329#comment-14626329
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Sunil G commented on YARN-3873:
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Thank you [~leftnoteasy] for sharing your thoughts.
I definitely agree to your view on the problem in using a FairComparator on
pendingApplications. As mentioned, it is better to come with a customized
comparator which can help to select which application to be activated from the
list of pendingApplications.
I will update a patch with this change.
> pendingApplications in LeafQueue should also use OrderingPolicy
> ---------------------------------------------------------------
>
> Key: YARN-3873
> URL: https://issues.apache.org/jira/browse/YARN-3873
> Project: Hadoop YARN
> Issue Type: Sub-task
> Components: capacityscheduler
> Affects Versions: 2.7.0
> Reporter: Sunil G
> Assignee: Sunil G
> Attachments: 0001-YARN-3873.patch, 0002-YARN-3873.patch
>
>
> Currently *pendingApplications* in LeafQueue is using
> {{applicationComparator}} from CapacityScheduler. This can be changed and
> pendingApplications can use the OrderingPolicy configured in Queue level
> (Fifo/Fair as configured).
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