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https://issues.apache.org/jira/browse/YARN-8992?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16693120#comment-16693120
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Wilfred Spiegelenburg commented on YARN-8992:
---------------------------------------------
junit test failure is not related to the change
> Fair scheduler can delete a dynamic queue while an application attempt is
> being added to the queue
> --------------------------------------------------------------------------------------------------
>
> Key: YARN-8992
> URL: https://issues.apache.org/jira/browse/YARN-8992
> Project: Hadoop YARN
> Issue Type: Bug
> Components: fairscheduler
> Affects Versions: 3.1.1
> Reporter: Haibo Chen
> Assignee: Wilfred Spiegelenburg
> Priority: Major
> Attachments: YARN-8992.001.patch, YARN-8992.002.patch
>
>
> As discovered in YARN-8990, QueueManager can see a leaf queue being empty
> while FSLeafQueue.addApp() is called in the middle of
> {code:java}
> return queue.getNumRunnableApps() == 0 &&
> leafQueue.getNumNonRunnableApps() == 0 &&
> leafQueue.getNumAssignedApps() == 0;{code}
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