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From "Arun C Murthy (JIRA)" <j...@apache.org>
Subject [jira] Updated: (HADOOP-1862) reduces are getting stuck trying to find map outputs
Date Tue, 11 Sep 2007 10:40:32 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-1862?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Arun C Murthy updated HADOOP-1862:
----------------------------------

    Attachment:     (was: HADOOP-1862_debug.patch)

> reduces are getting stuck trying to find map outputs
> ----------------------------------------------------
>
>                 Key: HADOOP-1862
>                 URL: https://issues.apache.org/jira/browse/HADOOP-1862
>             Project: Hadoop
>          Issue Type: Bug
>          Components: mapred
>    Affects Versions: 0.14.1
>            Reporter: Owen O'Malley
>            Assignee: Owen O'Malley
>            Priority: Blocker
>             Fix For: 0.15.0
>
>         Attachments: HADOOP-1862_debug.patch, HADOOP-1862_prelim.patch
>
>
> Some of the reduces have been stuck for hours looking for 137 map outputs. When I look
at the job events all 2600 of the maps have succeeded. There have been lots of lost task trackers
and shuffle failures. The maps have been run between 1 to 6 times each. I do see some of the
events in the task event log are marked OBSOLETE.

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