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Posted to mapreduce-issues@hadoop.apache.org by "Hadoop QA (JIRA)" <ji...@apache.org> on 2014/07/03 07:55:28 UTC
[jira] [Commented] (MAPREDUCE-5044) Have AM trigger jstack on task
attempts that timeout before killing them
[ https://issues.apache.org/jira/browse/MAPREDUCE-5044?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14051097#comment-14051097 ]
Hadoop QA commented on MAPREDUCE-5044:
--------------------------------------
{color:red}-1 overall{color}. Here are the results of testing the latest attachment
http://issues.apache.org/jira/secure/attachment/12645521/MAPREDUCE-5044.v06.patch
against trunk revision .
{color:green}+1 @author{color}. The patch does not contain any @author tags.
{color:green}+1 tests included{color}. The patch appears to include 1 new or modified test files.
{color:red}-1 javac{color:red}. The patch appears to cause the build to fail.
Console output: https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/4706//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
> Assignee: Gera Shegalov
> Attachments: MAPREDUCE-5044.v01.patch, MAPREDUCE-5044.v02.patch, MAPREDUCE-5044.v03.patch, MAPREDUCE-5044.v04.patch, MAPREDUCE-5044.v05.patch, MAPREDUCE-5044.v06.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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