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https://issues.apache.org/jira/browse/HADOOP-1183?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Devaraj Das resolved HADOOP-1183.
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Resolution: Duplicate
The original bug is a duplicate of HADOOP-1270. The comment on redesigning
shuffle is now a new issue - HADOOP-1337.
> MapTask completion not recorded properly at the Reducer's end
> -------------------------------------------------------------
>
> Key: HADOOP-1183
> URL: https://issues.apache.org/jira/browse/HADOOP-1183
> Project: Hadoop
> Issue Type: Bug
> Components: mapred
> Affects Versions: 0.12.2
> Reporter: Devaraj Das
> Assigned To: Devaraj Das
> Priority: Critical
> Fix For: 0.13.0
>
> Attachments: 1183.new.patch, 1183.new1.patch, 1183.patch
>
>
> A couple of reducers were continuously trying to fetch map outputs from a
> lost tasktracker. Although the tasks running on that lost TT successfully
> reexecuted elsewhere, the Reducers' tasktrackers didn't correctly note those
> events.
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