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https://issues.apache.org/jira/browse/MAPREDUCE-5060?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13600433#comment-13600433
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Robert Joseph Evans commented on MAPREDUCE-5060:
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I ran all of the MR tests and they all still pass. I will look at adding in a
test for this.
> Fetch failures that time out only count against the first map task
> ------------------------------------------------------------------
>
> Key: MAPREDUCE-5060
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-5060
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Reporter: Robert Joseph Evans
> Assignee: Robert Joseph Evans
> Priority: Critical
> Attachments: MR-5060.txt
>
>
> When a fetch failure happens, if the socket has already "connected" it is
> only counted against the first map task. But most of the time it is because
> of an issue with the Node itself, not the individual map task, and as such
> all failures when trying to initiate the connection should count against all
> of the tasks.
> This caused a particularly unfortunate job to take an hour an a half longer
> then it needed to.
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