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https://issues.apache.org/jira/browse/YARN-4761?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Sangjin Lee updated YARN-4761:
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Attachment: YARN-4761.02.patch
Thanks for the pointer [~rohithsharma]. It's good to know.
Posted patch v.2. I moved the unit test from {{TestCapacityScheduler}} to
{{TestAbstractYarnScheduler}}. I can confirm that the test fails before the
fair scheduler changes and passes after.
> 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
> 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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