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From "Jian He (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-2865) Application recovery continuously fails with "Application with id already present. Cannot duplicate"
Date Mon, 17 Nov 2014 18:58:33 GMT

    [ https://issues.apache.org/jira/browse/YARN-2865?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14214989#comment-14214989
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Jian He commented on YARN-2865:
-------------------------------

patch looks good overall. 
The patch should be enough to fix this jira. In addition, we need to clear "systemCredentials,
schedulerRecoveryStartTime, schedulerRecoveryWaitTime etc.. " too.. probably we should have
a separate class including all the active services' context and instantiate a new class when
transitioning from standby to active for future-proof, instead of reseting each individual
field. thoughts?  we can definitely do this separately 

> 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
>            Priority: Critical
>         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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