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https://issues.apache.org/jira/browse/YARN-4761?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16344918#comment-16344918
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Sourabh Goyal commented on YARN-4761:
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[~sjlee0] [~zxu]]: There is still one
[occurrence|https://github.com/apache/hadoop/blob/10468529a9b858bd945e7ecb063c9c1438efa474/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/fair/FSAppAttempt.java#L1008]
of RMNode.getTotalCapability() in FSAppAttempt.java in trunk. Is this
intentional?
> NMs reconnecting with changed capabilities can lead to wrong cluster resource
> calculations on fair scheduler
> ------------------------------------------------------------------------------------------------------------
>
> Key: YARN-4761
> URL: https://issues.apache.org/jira/browse/YARN-4761
> Project: Hadoop YARN
> Issue Type: Bug
> Components: fairscheduler
> Affects Versions: 2.6.4
> Reporter: Sangjin Lee
> Assignee: Sangjin Lee
> Priority: Major
> Fix For: 2.8.0, 2.7.3, 2.6.5, 3.0.0-alpha1
>
> Attachments: YARN-4761.01.patch, YARN-4761.02.patch
>
>
> YARN-3802 uncovered an issue with the scheduler where the resource
> calculation can be incorrect due to async event handling. It was subsequently
> fixed by YARN-4344, but it was never fixed for the fair scheduler.
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