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From "Eric Payne (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-4945) [Umbrella] Capacity Scheduler Preemption Within a queue
Date Fri, 02 Sep 2016 14:35:20 GMT

    [ https://issues.apache.org/jira/browse/YARN-4945?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15458695#comment-15458695
] 

Eric Payne commented on YARN-4945:
----------------------------------

[~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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