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https://issues.apache.org/jira/browse/YARN-3132?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14326460#comment-14326460
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Jian He commented on YARN-3132:
-------------------------------

+1

> RMNodeLabelsManager should remove node from node-to-label mapping when node 
> becomes deactivated
> -----------------------------------------------------------------------------------------------
>
>                 Key: YARN-3132
>                 URL: https://issues.apache.org/jira/browse/YARN-3132
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: api, client, resourcemanager
>            Reporter: Wangda Tan
>            Assignee: Wangda Tan
>         Attachments: YARN-3132.1.patch
>
>
> Using an example to explain:
> 1) Admin specify host1 has label=x
> 2) node=host1:123 registered
> 3) Get node-to-label mapping, return host1/host1:123
> 4) node=host1:123 unregistered
> 5) Get node-to-label mapping, still returns host1:123
> Probably we should remove host1:123 when it becomes deactivated and no 
> directly label assigned to it (directly assign means admin specify host1:123 
> has x instead of host1 has x).



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