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From "Eric Payne (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (MAPREDUCE-5044) Have AM trigger jstack on task attempts that timeout before killing them
Date Mon, 16 May 2016 19:51:13 GMT

     [ https://issues.apache.org/jira/browse/MAPREDUCE-5044?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Eric Payne updated MAPREDUCE-5044:
----------------------------------
    Attachment: MAPREDUCE-5044.009.patch

[~jlowe], [~jira.shegalov], [~mingma], [~xgong],
Patch 008 was no longer applying to trunk. I upmerged the patch and attaching MAPREDUCE-5044.009.patch.
Can I please ask one of you to look at it?

> 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
>            Assignee: Gera Shegalov
>         Attachments: MAPREDUCE-5044.008.patch, MAPREDUCE-5044.009.patch, MAPREDUCE-5044.v01.patch,
MAPREDUCE-5044.v02.patch, MAPREDUCE-5044.v03.patch, MAPREDUCE-5044.v04.patch, MAPREDUCE-5044.v05.patch,
MAPREDUCE-5044.v06.patch, MAPREDUCE-5044.v07.local.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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