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https://issues.apache.org/jira/browse/HADOOP-4246?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Amareshwari Sriramadasu updated HADOOP-4246:
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Status: Open (was: Patch Available)
GENERIC_ERROR doesn't make sense after reverting HADOOP-3327.
I will upload a patch again for addressing maxFetchRetriesPerMap=zero
> Reduce task copy errors may not kill it eventually
> --------------------------------------------------
>
> Key: HADOOP-4246
> URL: https://issues.apache.org/jira/browse/HADOOP-4246
> Project: Hadoop Core
> Issue Type: Bug
> Components: mapred
> Affects Versions: 0.19.0
> Reporter: Amareshwari Sriramadasu
> Assignee: Amareshwari Sriramadasu
> Priority: Blocker
> Fix For: 0.19.0
>
> Attachments: patch-4246.txt
>
>
> maxFetchRetriesPerMap in reduce task can be zero some times (when
> maxMapRunTime is less than 4 seconds or mapred.reduce.copy.backoff is less
> than 4). This will not count reduce task copy errors to kill it eventually.
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