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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-7469) Capacity Scheduler Intra-queue preemption: User can starve if newest app is exactly at user limit
Date Thu, 16 Nov 2017 17:26:01 GMT

    [ https://issues.apache.org/jira/browse/YARN-7469?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16255631#comment-16255631
] 

Hudson commented on YARN-7469:
------------------------------

SUCCESS: Integrated in Jenkins build Hadoop-trunk-Commit #13246 (See [https://builds.apache.org/job/Hadoop-trunk-Commit/13246/])
YARN-7469. Capacity Scheduler Intra-queue preemption: User can starve if (sunilg: rev 61ace174cdcbca9d22abce7aa0aa71148f37ad55)
* (edit) hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/monitor/capacity/FifoIntraQueuePreemptionPlugin.java
* (edit) hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/monitor/capacity/TestProportionalCapacityPreemptionPolicyIntraQueueUserLimit.java
* (edit) hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/monitor/capacity/ProportionalCapacityPreemptionPolicyMockFramework.java


> Capacity Scheduler Intra-queue preemption: User can starve if newest app is exactly at
user limit
> -------------------------------------------------------------------------------------------------
>
>                 Key: YARN-7469
>                 URL: https://issues.apache.org/jira/browse/YARN-7469
>             Project: Hadoop YARN
>          Issue Type: Bug
>          Components: capacity scheduler, yarn
>    Affects Versions: 2.9.0, 3.0.0-beta1, 2.8.2
>            Reporter: Eric Payne
>            Assignee: Eric Payne
>         Attachments: UnitTestToShowStarvedUser.patch, YARN-7469.001.patch
>
>
> Queue Configuration:
> - Total Memory: 20GB
> - 2 Queues
> -- Queue1
> --- Memory: 10GB
> --- MULP: 10%
> --- ULF: 2.0
> - Minimum Container Size: 0.5GB
> Use Case:
> - User1 submits app1 to Queue1 and consumes 20GB
> - User2 submits app2 to Queue1 and requests 7.5GB
> - Preemption monitor preempts 7.5GB from app1. Capacity Scheduler gives those resources
to User2
> - User 3 submits app3 to Queue1. To begin with, app3 is requesting 1 container for the
AM.
> - Preemption monitor never preempts a container.



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