Rohith commented on YARN-2880:

Hi Wangda Tan, 
       I am trying to write test cases for nodelabel recovery. IIUC, as of now 
recovery is not yet supported till YARN-2800 is committed.

I just started using NodeLabel feature(it is still in development process) and 
I stuck with several doubts on usage of NodeLabels features. Any document 
1. How can I configure Nodelabels? Is it only rmadmin as of now?
2. I set labels to NM from rmadmin,but how do I make use of these labels?
If you dont mind, please give me crisp details.

> Add a test in TestRMRestart to make sure node labels will be recovered if it 
> is enabled
> ---------------------------------------------------------------------------------------
>                 Key: YARN-2880
>                 URL: https://issues.apache.org/jira/browse/YARN-2880
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: resourcemanager
>            Reporter: Wangda Tan
>            Assignee: Rohith
> As suggested by [~ozawa], 
> [link|https://issues.apache.org/jira/browse/YARN-2800?focusedCommentId=14217569&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-14217569].
>  We should have a such test to make sure there will be no regression

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