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https://issues.apache.org/jira/browse/YARN-796?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14059074#comment-14059074
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Sandy Ryza commented on YARN-796:
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+1 on reducing the complexity of the label predicates.  We should only use OR 
if we can think of a few concrete use cases where we would need it.

> Allow for (admin) labels on nodes and resource-requests
> -------------------------------------------------------
>
>                 Key: YARN-796
>                 URL: https://issues.apache.org/jira/browse/YARN-796
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>            Reporter: Arun C Murthy
>            Assignee: Wangda Tan
>         Attachments: LabelBasedScheduling.pdf, 
> Node-labels-Requirements-Design-doc-V1.pdf, YARN-796.patch
>
>
> It will be useful for admins to specify labels for nodes. Examples of labels 
> are OS, processor architecture etc.
> We should expose these labels and allow applications to specify labels on 
> resource-requests.
> Obviously we need to support admin operations on adding/removing node labels.



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