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From "Karthik Kambatla (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-4000) RM crashes with NPE if leaf queue becomes parent queue during restart
Date Sat, 08 Aug 2015 17:39:46 GMT

    [ https://issues.apache.org/jira/browse/YARN-4000?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14663081#comment-14663081
] 

Karthik Kambatla commented on YARN-4000:
----------------------------------------

We should use yarn.resourcemanager.fail-fast to determine whether to crash the RM or not.


> RM crashes with NPE if leaf queue becomes parent queue during restart
> ---------------------------------------------------------------------
>
>                 Key: YARN-4000
>                 URL: https://issues.apache.org/jira/browse/YARN-4000
>             Project: Hadoop YARN
>          Issue Type: Bug
>          Components: capacityscheduler, resourcemanager
>    Affects Versions: 2.6.0
>            Reporter: Jason Lowe
>            Assignee: Varun Saxena
>
> This is a similar situation to YARN-2308.  If an application is active in queue A and
then the RM restarts with a changed capacity scheduler configuration where queue A becomes
a parent queue to other subqueues then the RM will crash with a NullPointerException.



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