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https://issues.apache.org/jira/browse/MAPREDUCE-3927?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13239273#comment-13239273
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Ravi Gummadi commented on MAPREDUCE-3927:
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copySucceeded() is updating the progress of map-tasks, but tipFailed() is not
updating. My understanding is that overall progress of map tasks represents the
completed maps' work. So it may be better to update it for the failed-map-tasks
case also.
> Shuffle hang when set map.failures.percent
> ------------------------------------------
>
> Key: MAPREDUCE-3927
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-3927
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Components: mrv2
> Affects Versions: 0.21.0, 0.23.0
> Reporter: MengWang
> Labels: patch
> Fix For: 0.24.0
>
> Attachments: MAPREDUCE-3927.patch, MAPREDUCE-3927.patch
>
>
> When set mapred.max.map.failures.percent and there does have some failed
> maps, then shuffle will hang
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