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https://issues.apache.org/jira/browse/YARN-2865?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14212898#comment-14212898
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Jian He commented on YARN-2865:
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hi Rohith, one question, why does the rmContext still contain the application? 
If the RM were at standby mode, the transitionToStandby should have cleaned the 
rmContext up ?

> Application recovery continuously fails with "Application with id already 
> present. Cannot duplicate"
> ----------------------------------------------------------------------------------------------------
>
>                 Key: YARN-2865
>                 URL: https://issues.apache.org/jira/browse/YARN-2865
>             Project: Hadoop YARN
>          Issue Type: Bug
>          Components: resourcemanager
>            Reporter: Rohith
>            Assignee: Rohith
>         Attachments: YARN-2865.patch
>
>
> YARN-2588 handles exception thrown while transitioningToActive and reset 
> activeServices. But it misses out clearing RMcontext apps/nodes details and 
> ClusterMetrics and QueueMetrics. This causes application recovery to fail.  



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