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From "Xuan Gong (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (MAPREDUCE-5533) Speculative execution does not function for reduce
Date Wed, 25 Sep 2013 18:28:03 GMT

     [ https://issues.apache.org/jira/browse/MAPREDUCE-5533?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Xuan Gong updated MAPREDUCE-5533:
---------------------------------

    Status: Patch Available  (was: Open)
    
> Speculative execution does not function for reduce
> --------------------------------------------------
>
>                 Key: MAPREDUCE-5533
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-5533
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>          Components: applicationmaster
>            Reporter: Tassapol Athiapinya
>            Assignee: Xuan Gong
>             Fix For: 2.1.1-beta
>
>         Attachments: MAPREDUCE-5533.1.patch
>
>
> We have sort job where reduce attempt does not send heartbeat in timely manner to application
master. The AM should kick off another attempt to let job succeeds. What we find is the job
fails and there is no speculation happening.

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