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Posted to mapreduce-issues@hadoop.apache.org by "Xuan Gong (JIRA)" <ji...@apache.org> on 2013/09/25 18:36:03 UTC

[jira] [Assigned] (MAPREDUCE-5533) Speculative execution does not function for reduce

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

Xuan Gong reassigned MAPREDUCE-5533:
------------------------------------

    Assignee: Xuan Gong
    
> 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
>
>
> 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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