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Date: Thu, 27 Oct 2016 07:07:58 +0000 (UTC)
From: "Rohith Sharma K S (JIRA)" <jira@apache.org>
To: yarn-issues@hadoop.apache.org
Message-ID: <JIRA.12709997.1398248325000.98063.1477552078798@Atlassian.JIRA>
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References: <JIRA.12709997.1398248325000@Atlassian.JIRA> <JIRA.12709997.1398248325355@arcas>
Subject: [jira] [Commented] (YARN-1974) add args for DistributedShell to
 specify a set of nodes on which the tasks run
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archived-at: Thu, 27 Oct 2016 07:08:05 -0000


    [ https://issues.apache.org/jira/browse/YARN-1974?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15610966#comment-15610966 ] 

Rohith Sharma K S commented on YARN-1974:
-----------------------------------------

Do we still need this even after using setting -node_label_expression in DS?

> add args for DistributedShell to specify a set of nodes on which the tasks run
> ------------------------------------------------------------------------------
>
>                 Key: YARN-1974
>                 URL: https://issues.apache.org/jira/browse/YARN-1974
>             Project: Hadoop YARN
>          Issue Type: Improvement
>          Components: applications/distributed-shell
>    Affects Versions: 2.7.0
>            Reporter: Hong Zhiguo
>            Assignee: Xuan Gong
>            Priority: Minor
>         Attachments: YARN-1974.1.patch, YARN-1974.patch
>
>
> It's very useful to execute a script on a specific set of machines for both testing and maintenance purpose.
> The args "--nodes" and "--relax_locality" are added to DistributedShell. Together with an unit test using miniCluster.
> It's also tested on our real cluster with Fair scheduler.


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