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From "Devaraj K (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (MAPREDUCE-4013) Reduce task gets stuck when a M/R job is configured to tolerate failures
Date Mon, 26 Mar 2012 17:54:31 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-4013?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13238625#comment-13238625
] 

Devaraj K commented on MAPREDUCE-4013:
--------------------------------------

Seems dup of MAPREDUCE-3927.
                
> Reduce task gets stuck when a M/R job is configured to tolerate failures
> ------------------------------------------------------------------------
>
>                 Key: MAPREDUCE-4013
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-4013
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>          Components: mrv2
>    Affects Versions: 0.23.2
>            Reporter: Amar Kamat
>            Priority: Blocker
>              Labels: shuffle
>             Fix For: 0.24.0
>
>         Attachments: MAPREDUCE-4013.patch
>
>
> When a M/R job is configured to run with some tolerance to task failures (via mapreduce.map.failures.maxpercent),
then the reduce task of that job gets stuck in the shuffle phase. 

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