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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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Priority: Blocker (was: Critical)
Affects Version/s: 0.19.0
Currently only READ and CONNECT errors in Reducer copyOutput are count against
failed fetches, other errors like disk out of space are not taken into
consideration. These errors could just hang the reducer.
> 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
>
>
> 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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