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From "Junping Du (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (MAPREDUCE-5891) Improved shuffle error handling across NM restarts
Date Thu, 18 Sep 2014 21:03:34 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-5891?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14139511#comment-14139511
] 

Junping Du commented on MAPREDUCE-5891:
---------------------------------------

Thanks [~jlowe] for reviewing the patch! Fix it as your comments above in v6 patch.

> Improved shuffle error handling across NM restarts
> --------------------------------------------------
>
>                 Key: MAPREDUCE-5891
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-5891
>             Project: Hadoop Map/Reduce
>          Issue Type: Improvement
>    Affects Versions: 2.5.0
>            Reporter: Jason Lowe
>            Assignee: Junping Du
>         Attachments: MAPREDUCE-5891-demo.patch, MAPREDUCE-5891-v2.patch, MAPREDUCE-5891-v3.patch,
MAPREDUCE-5891-v4.patch, MAPREDUCE-5891-v5.patch, MAPREDUCE-5891-v6.patch, MAPREDUCE-5891.patch
>
>
> To minimize the number of map fetch failures reported by reducers across an NM restart
it would be nice if reducers only reported a fetch failure after trying for at specified period
of time to retrieve the data.



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