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From "Yufei Gu (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-4493) move queue can make app don't belong to any queue
Date Wed, 12 Oct 2016 18:26:20 GMT

    [ https://issues.apache.org/jira/browse/YARN-4493?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15569482#comment-15569482
] 

Yufei Gu commented on YARN-4493:
--------------------------------

Hi [~jiangyu1211], thanks for your information. The easy way to identify this issue would
be to drop a debug jar to RM, and reproduce it. That might help us more. BTW, I don't think
there is any maintenance release for 2.4. 

> move queue can make app don't belong to any queue
> -------------------------------------------------
>
>                 Key: YARN-4493
>                 URL: https://issues.apache.org/jira/browse/YARN-4493
>             Project: Hadoop YARN
>          Issue Type: Bug
>          Components: fairscheduler
>    Affects Versions: 2.4.0, 2.6.0, 2.7.1
>            Reporter: jiangyu
>            Assignee: Yufei Gu
>            Priority: Minor
>         Attachments: YARN-4493.001.patch, yarn-4493.patch.1
>
>
> When moving a running application to a different queue, the current implement don't check
if the app can run in the new queue before remove it from current queue. So if the destination
queue is full, the app will throw exception, and don't belong to any queue.    
> After that, the queue become orphane, can not schedule any resources. If you kill the
app,  the removeApp method in FSLeafQueue will throw IllealStateException of "Given app to
remove app does not exist in queue ..." exception.   
> So i think we should check if the destination queue can run the app before remove it
from the current queue.  
> The patch is from our revision.



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