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https://issues.apache.org/jira/browse/YARN-2010?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14182135#comment-14182135
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Karthik Kambatla commented on YARN-2010:
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[~jianhe] - can you please verify the changes to TestWorkPreservingRMRestart 
are reasonable. 

> If RM fails to recover an app, it can never transition to active again
> ----------------------------------------------------------------------
>
>                 Key: YARN-2010
>                 URL: https://issues.apache.org/jira/browse/YARN-2010
>             Project: Hadoop YARN
>          Issue Type: Bug
>          Components: resourcemanager
>    Affects Versions: 2.3.0
>            Reporter: bc Wong
>            Assignee: Karthik Kambatla
>            Priority: Critical
>         Attachments: YARN-2010.1.patch, YARN-2010.patch, 
> issue-stacktrace.rtf, yarn-2010-2.patch, yarn-2010-3.patch, 
> yarn-2010-3.patch, yarn-2010-4.patch, yarn-2010-5.patch
>
>
> Sometimes, the RM fails to recover an application. It could be because of 
> turning security on, token expiry, or issues connecting to HDFS etc. The 
> causes could be classified into (1) transient, (2) specific to one 
> application, and (3) permanent and apply to multiple (all) applications. 
> Today, the RM fails to transition to Active and ends up in STOPPED state and 
> can never be transitioned to Active again.
> The initial stacktrace reported is at 
> https://issues.apache.org/jira/secure/attachment/12676476/issue-stacktrace.rtf



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