Naganarasimha G R commented on YARN-2923:

Thanks [~john.jian.fang] for your feedback, Will check the feasibility during 
the review of these 2 jiras and try to get your suggestion in, but for now  if 
you are trying to configure only once then you can use RM REST API 
configuration for Node Labels from your controller when adding additional 
nodes, Please share your opinion if you see any disadvantages in doing so.

> Support configuration based NodeLabelsProvider Service in Distributed Node 
> Label Configuration Setup 
> -----------------------------------------------------------------------------------------------------
>                 Key: YARN-2923
>                 URL: https://issues.apache.org/jira/browse/YARN-2923
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: nodemanager
>            Reporter: Naganarasimha G R
>            Assignee: Naganarasimha G R
>         Attachments: YARN-2923.20141204-1.patch, YARN-2923.20141210-1.patch, 
> YARN-2923.20150328-1.patch
> As part of Distributed Node Labels configuration we need to support Node 
> labels to be configured in Yarn-site.xml. And on modification of Node Labels 
> configuration in yarn-site.xml, NM should be able to get modified Node labels 
> from this NodeLabelsprovider service without NM restart

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