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https://issues.apache.org/jira/browse/YARN-2495?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14329399#comment-14329399
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Wangda Tan commented on YARN-2495:
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For your questions:
1. It's not first priority, let's just keep it here and move on with the script 
one
2. That's make sense, and could you take a look at the health check script, is 
it as same as you mentioned? (I guess so)
3. I can remember that :), make sense to me. If there's any merge needed, we 
can tackle it in a separated JIRA.
4. I just marked to 2.8, since 2.7 is planned to be released within 2 weeks, I 
think it will be hard to fit in that timeframe.

IIRC, this JIRA contains a abstract node label provider only. I suggest don't 
add more options for configuring node label provider for now (saying, set 
provider=script-based-provider), to avoid potentially unnecessary switches.

For now, as we discussed, you can leave an empty provider implementation (but 
need proper impl to do tests), script-based-provider can be addressed 
separately.

> Allow admin specify labels from each NM (Distributed configuration)
> -------------------------------------------------------------------
>
>                 Key: YARN-2495
>                 URL: https://issues.apache.org/jira/browse/YARN-2495
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: resourcemanager
>            Reporter: Wangda Tan
>            Assignee: Naganarasimha G R
>         Attachments: YARN-2495.20141023-1.patch, YARN-2495.20141024-1.patch, 
> YARN-2495.20141030-1.patch, YARN-2495.20141031-1.patch, 
> YARN-2495.20141119-1.patch, YARN-2495.20141126-1.patch, 
> YARN-2495.20141204-1.patch, YARN-2495.20141208-1.patch, 
> YARN-2495_20141022.1.patch
>
>
> Target of this JIRA is to allow admin specify labels in each NM, this covers
> - User can set labels in each NM (by setting yarn-site.xml (YARN-2923) or 
> using script suggested by [~aw] (YARN-2729) )
> - NM will send labels to RM via ResourceTracker API
> - RM will set labels in NodeLabelManager when NM register/update labels



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