Naganarasimha G R updated YARN-2740:
    Attachment: YARN-2740.20150421-1.patch

Thanks for the review comments [~wangda], 
I have updated the patch with changes {{not to prevent removing 
clusterNodeLabel while distributed enabled}}. Please review.

bq. This may not be a big issue, I suggest to keep it as-is temporarily since 
it needs change NM/RM interface. We can address other issues before come to the 

> ResourceManager side should properly handle node label modifications when 
> distributed node label configuration enabled
> ----------------------------------------------------------------------------------------------------------------------
>                 Key: YARN-2740
>                 URL: https://issues.apache.org/jira/browse/YARN-2740
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: resourcemanager
>            Reporter: Wangda Tan
>            Assignee: Naganarasimha G R
>             Fix For: 2.8.0
>         Attachments: YARN-2740-20141024-1.patch, YARN-2740.20150320-1.patch, 
> YARN-2740.20150327-1.patch, YARN-2740.20150411-1.patch, 
> YARN-2740.20150411-2.patch, YARN-2740.20150411-3.patch, 
> YARN-2740.20150417-1.patch, YARN-2740.20150420-1.patch, 
> YARN-2740.20150421-1.patch
> According to YARN-2495, when distributed node label configuration is enabled:
> - RMAdmin / REST API should reject change labels on node operations.
> - CommonNodeLabelsManager shouldn't persist labels on nodes when NM do 
> heartbeat.

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