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https://issues.apache.org/jira/browse/HADOOP-3327?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12593769#action_12593769
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Runping Qi commented on HADOOP-3327:
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It is pretty clear to me what is broken.
It is the re-try strategy that does not take the job/task progression state
into account.
A simple heuristic as I outlined earlier will make a bug difference.
> Shufflinge fetachers waited too long between map output fetch re-tries
> ----------------------------------------------------------------------
>
> Key: HADOOP-3327
> URL: https://issues.apache.org/jira/browse/HADOOP-3327
> Project: Hadoop Core
> Issue Type: Bug
> Components: mapred
> Reporter: Runping Qi
>
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