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https://issues.apache.org/jira/browse/YARN-4945?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15502794#comment-15502794
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Sunil G commented on YARN-4945:
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My bad too.. I also only ran UT cases after this change. Thank you very much
[~eepayne] for pointing out the same.
I think i know the problem here. we try to merge
{{pendingOrderingPolicy.getSchedulableEntities()}} and
{{orderingPolicy.getSchedulableEntities()}}. Eventhough both are TreeSet, both
uses different comparator. So HashSet change will be fine as we are not looking
for any type of order in the target data structure. I wll try some more
optimization here in next patch.
> [Umbrella] Capacity Scheduler Preemption Within a queue
> -------------------------------------------------------
>
> Key: YARN-4945
> URL: https://issues.apache.org/jira/browse/YARN-4945
> Project: Hadoop YARN
> Issue Type: Bug
> Reporter: Wangda Tan
> Attachments: Intra-Queue Preemption Use Cases.pdf,
> IntraQueuepreemption-CapacityScheduler (Design).pdf, YARN-2009-wip.2.patch,
> YARN-2009-wip.patch, YARN-2009-wip.v3.patch, YARN-2009.v0.patch,
> YARN-2009.v1.patch, YARN-2009.v2.patch, YARN-2009.v3.patch
>
>
> This is umbrella ticket to track efforts of preemption within a queue to
> support features like:
> YARN-2009. YARN-2113. YARN-4781.
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