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https://issues.apache.org/jira/browse/YARN-2786?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14192247#comment-14192247
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Allen Wittenauer commented on YARN-2786:
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bq. The command should start with "yarn node-labels ..."

Why isn't this part of 'yarn node' or 'yarn rmadmin'?  Why do we need a 
specialized command for this?

> Create yarn node-labels CLI to enable list node labels collection and node 
> labels mapping
> -----------------------------------------------------------------------------------------
>
>                 Key: YARN-2786
>                 URL: https://issues.apache.org/jira/browse/YARN-2786
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: api, client, resourcemanager
>            Reporter: Wangda Tan
>            Assignee: Wangda Tan
>         Attachments: YARN-2786-20141031-1.patch, YARN-2786-20141031-2.patch
>
>
> With YARN-2778, we can list node labels on existing RM nodes. But it is not 
> enough, we should be able to: 
> 1) list node labels collection 
> 2) list node-to-label mappings even if the node hasn't registered to RM.
> The command should start with "yarn node-labels ..."



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