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https://issues.apache.org/jira/browse/HADOOP-1514?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Vivek Ratan updated HADOOP-1514:
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Attachment: 1514_01.patch
The fix is to report progress in the Reducer if there are no downloads of map
output in progress or none scheduled. See 1514_01.patch.
> Progress reporting not handled for the case where a reducer currently doesn't
> have anything to fetch
> ----------------------------------------------------------------------------------------------------
>
> Key: HADOOP-1514
> URL: https://issues.apache.org/jira/browse/HADOOP-1514
> Project: Hadoop
> Issue Type: Bug
> Components: mapred
> Affects Versions: 0.14.0
> Reporter: Devaraj Das
> Assignee: Vivek Ratan
> Priority: Blocker
> Fix For: 0.14.0
>
> Attachments: 1514_01.patch
>
>
> In some apps (like the randomwriter), the maps take a long time to complete,
> and there could be cases where a reducer would just be waiting for map(s) to
> complete. During that time progress reporting is not done.
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