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From "Wangda Tan (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-796) Allow for (admin) labels on nodes and resource-requests
Date Wed, 03 Sep 2014 09:36:52 GMT

    [ https://issues.apache.org/jira/browse/YARN-796?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14119690#comment-14119690

Wangda Tan commented on YARN-796:

Hi guys,
I've just created a shadow umbrella JIRA (YARN-2492) for YARN-796 (because YARN-796 is a sub
JIRA), and created a bunch of sub tasks under it.
I also updated a diagram for YARN-796 (YARN-796-Diagram.pdf), hopefully it can make you have
better understanding of the overall structure and flow.

*Summary of sub tasks:*
* User API changes: YARN-2493
* NodeLabelManager implementation: YARN-2494 (Depends on YARN-2493)
* CapacityScheduler side changes: YARN-2496 (Depends on YARN-2494)
* Respect labels when do preemption in CS: YARN-2498 (Depends on YARN-2496)
* Other changes in RM to support labels: YARN-2500
* Changes in AMRMClient to support labels: YARN-2501 (Depends on YARN-2493)
* Changes in Distributed Shell to support labels: YARN-2502 (Depends on YARN-2501)
* WebUI/RMAdmin-CLI/REST-API: YARN-2503, YARN-2504, YARN-2505 (Depends on YARN-2494, YARN-2496,

[~yufeldman], do you agree about the basic proposal? I think API expose to users of our proposals
are similar but different in implementation.

Please feel free to add your comments. Thanks a lot!

> 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
>    Affects Versions: 2.4.1
>            Reporter: Arun C Murthy
>            Assignee: Wangda Tan
>         Attachments: LabelBasedScheduling.pdf, Node-labels-Requirements-Design-doc-V1.pdf,
Node-labels-Requirements-Design-doc-V2.pdf, YARN-796.node-label.consolidate.1.patch, YARN-796.node-label.demo.patch.1,
YARN-796.patch, YARN-796.patch4
> 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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