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https://issues.apache.org/jira/browse/HADOOP-1862?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Devaraj Das reopened HADOOP-1862:
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Reopening the issue since the patch doesn't apply to 0.14. Please submit a
separate patch for that.
> 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: 0.13.0, 0.13.1, 0.14.0, 0.14.1
> Reporter: Owen O'Malley
> Assignee: Arun C Murthy
> Priority: Blocker
> Fix For: 0.14.2
>
> Attachments: HADOOP-1862_1_20070912.patch,
> HADOOP-1862_2_20070927.patch, HADOOP-1862_3_20071002.patch,
> 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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