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https://issues.apache.org/jira/browse/MAPREDUCE-5044?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13826880#comment-13826880
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Hadoop QA commented on MAPREDUCE-5044:
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{color:red}-1 overall{color}. Here are the results of testing the latest
attachment
http://issues.apache.org/jira/secure/attachment/12614676/Screen%20Shot%202013-11-12%20at%201.06.04%20PM.png
against trunk revision .
{color:red}-1 patch{color}. The patch command could not apply the patch.
Console output:
https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/4215//console
This message is automatically generated.
> Have AM trigger jstack on task attempts that timeout before killing them
> ------------------------------------------------------------------------
>
> Key: MAPREDUCE-5044
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-5044
> Project: Hadoop Map/Reduce
> Issue Type: Improvement
> Components: mr-am
> Affects Versions: 2.1.0-beta
> Reporter: Jason Lowe
> Attachments: MAPREDUCE-5044.v01.patch, Screen Shot 2013-11-12 at
> 1.05.32 PM.png, Screen Shot 2013-11-12 at 1.06.04 PM.png
>
>
> When an AM expires a task attempt it would be nice if it triggered a jstack
> output via SIGQUIT before killing the task attempt. This would be invaluable
> for helping users debug their hung tasks, especially if they do not have
> shell access to the nodes.
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