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https://issues.apache.org/jira/browse/YARN-8994?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16710722#comment-16710722
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Hudson commented on YARN-8994:
------------------------------
SUCCESS: Integrated in Jenkins build Hadoop-trunk-Commit #15564 (See
[https://builds.apache.org/job/Hadoop-trunk-Commit/15564/])
YARN-8994. Fix race condition between move app and queue cleanup in Fair
(haibochen: rev 2bba329c141dea17a1a9f7112f7155e11264ccfd)
* (edit)
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/fair/FairScheduler.java
> Fix race condition between move app and queue cleanup in Fair Scheduler
> -----------------------------------------------------------------------
>
> Key: YARN-8994
> URL: https://issues.apache.org/jira/browse/YARN-8994
> Project: Hadoop YARN
> Issue Type: Bug
> Components: fairscheduler
> Affects Versions: 3.2.0
> Reporter: Wilfred Spiegelenburg
> Assignee: Wilfred Spiegelenburg
> Priority: Major
> Fix For: 3.3.0
>
> Attachments: YARN-8994.001.patch
>
>
> Similar to YARN-8990 and also introduced by YARN-8191 there is a race
> condition while moving an application. The pre-move check looks for the queue
> and when it finds the queue it progresses. The real move then retrieves the
> queue and does further check before updating the app and queues.
> The move uses the retrieved queue object but the queue could have become
> empty while checks are performed. If the cleanup runs at that same time the
> app will be moved to a deleted queue and lost.
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