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From "Bikas Saha (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-796) Allow for (admin) labels on nodes and resource-requests
Date Fri, 23 May 2014 23:26:02 GMT

    [ https://issues.apache.org/jira/browse/YARN-796?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14007866#comment-14007866
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Bikas Saha commented on YARN-796:
---------------------------------

Thanks [~john.jian.fang] An interesting use case from your comment is that not only can labels
be used to specify affinity but they can be used to specify anti-affinity ie. dont place task
on a certain label.
Do I correctly understand as this being your use case?
OR
Is your ask that node managers should specify their own labels when they register with the
RM instead of the node manager to label mapping being a central RM configuration?

> 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: 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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