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From "Wangda Tan (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-5390) Federation Subcluster Resolver
Date Wed, 03 Aug 2016 21:47:20 GMT

    [ https://issues.apache.org/jira/browse/YARN-5390?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15406683#comment-15406683

Wangda Tan commented on YARN-5390:

Thanks [~ellenfkh],

I don't have strong opinions about using non-static or static, it totally depends on how it
will be used. If lots of modules will use it, static class could be a better choice, if only
limited modules will use it, and they're all related to federation, keep it non-static and
can be get from FederationContext will be also good.

For general purpose of this JIRA, the patch looks fine. I hope someone who is more familiar
with federation code could take a deeper look at this patch. cc: [~subru] / [~curino].

> Federation Subcluster Resolver
> ------------------------------
>                 Key: YARN-5390
>                 URL: https://issues.apache.org/jira/browse/YARN-5390
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: nodemanager, resourcemanager
>            Reporter: Carlo Curino
>            Assignee: Ellen Hui
>         Attachments: YARN-5390-YARN-2915.v0.patch, YARN-5390-YARN-2915.v1.patch, YARN-5390-YARN-2915.v2.patch
> This JIRA tracks effort to create a mechanism to resolve nodes/racks resource names to
sub-cluster identifiers. This is needed by the federation policies in YARN-5323, YARN-5324,
YARN-5325 to operate correctly.

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