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From "Bikas Saha (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (TEZ-344) Add an option to allow node-local only scheduling in the TaskScheduler
Date Tue, 06 Aug 2013 23:25:47 GMT

    [ https://issues.apache.org/jira/browse/TEZ-344?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13731438#comment-13731438
] 

Bikas Saha commented on TEZ-344:
--------------------------------

To be clear, an option is needed to turn on strict locality but the impl should be via relaxLocality
flag in YARN API's and not workaround code in Tez.
                
> Add an option to allow node-local only scheduling in the TaskScheduler
> ----------------------------------------------------------------------
>
>                 Key: TEZ-344
>                 URL: https://issues.apache.org/jira/browse/TEZ-344
>             Project: Apache Tez
>          Issue Type: Improvement
>            Reporter: Siddharth Seth
>            Assignee: Siddharth Seth
>              Labels: TEZ-0.2.0
>
> This, for now, is primarily to help with testing of Tez on clusters.
> Would have to go in with a warning since this could cause jobs to hang / run for a long
time.
> Longer term, this can be enhanced to set limits on how long to wait before assigning
non-local tasks.

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