Jian He commented on YARN-1506:

bq.  In AdminService: we may updateNodeResource only if node resource changes?
I think this may not be accurate, as the previous update event maybe still in 
transit. Updated the patch myself with this change reverted.

> Replace set resource change on RMNode/SchedulerNode directly with event 
> notification.
> -------------------------------------------------------------------------------------
>                 Key: YARN-1506
>                 URL: https://issues.apache.org/jira/browse/YARN-1506
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: nodemanager, scheduler
>            Reporter: Junping Du
>            Assignee: Junping Du
>         Attachments: YARN-1506-v1.patch, YARN-1506-v10.patch, 
> YARN-1506-v11.patch, YARN-1506-v12.patch, YARN-1506-v13.patch, 
> YARN-1506-v14.patch, YARN-1506-v15.patch, YARN-1506-v16.patch, 
> YARN-1506-v17.patch, YARN-1506-v2.patch, YARN-1506-v3.patch, 
> YARN-1506-v4.patch, YARN-1506-v5.patch, YARN-1506-v6.patch, 
> YARN-1506-v7.patch, YARN-1506-v8.patch, YARN-1506-v9.patch
> According to Vinod's comments on YARN-312 
> (https://issues.apache.org/jira/browse/YARN-312?focusedCommentId=13846087&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-13846087),
>  we should replace RMNode.setResourceOption() with some resource change event.

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