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https://issues.apache.org/jira/browse/YARN-4945?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15458695#comment-15458695
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Eric Payne commented on YARN-4945:
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[~sunilg], just one quick note: I am getting a
{{UnsupportedOperationException}} RuntimeException in
{{IntraQueuePreemptableResourceCalculator#computeIntraQueuePreemptionDemand}}:
{code}
Collection<FiCaSchedulerApp> apps = leafQueue.getApplications();
apps.addAll(leafQueue.getPendingApplications());
{code}
{{LeafQueue#getApplications}} returns an umnodifiable Collection.
> [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
>
>
> 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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