Rohith commented on YARN-2865:

Thanks Karthik and Jian He for review. I will update the patch.
bq. In RMActiveServices, some are using rmContext#setter, some are using 
activeServiceContext#setter, we may make it consistent to use the latter
RMContext has 5 setter methods. I used those methods to set from 
RMActiveService just to retain interface implementation.

> 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-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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