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From "Rohith Sharma K S (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-1974) add args for DistributedShell to specify a set of nodes on which the tasks run
Date Thu, 27 Oct 2016 07:07:58 GMT

    [ 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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