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https://issues.apache.org/jira/browse/MAPREDUCE-5044?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13826967#comment-13826967
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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/12614688/MAPREDUCE-5044.v01.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 9 new
or modified test files.
{color:green}+1 javac{color}. The applied patch does not increase the
total number of javac compiler warnings.
{color:green}+1 javadoc{color}. The javadoc tool did not generate any
warning messages.
{color:green}+1 eclipse:eclipse{color}. The patch built with
eclipse:eclipse.
{color:green}+1 findbugs{color}. The patch does not introduce any new
Findbugs (version 1.3.9) warnings.
{color:green}+1 release audit{color}. The applied patch does not increase
the total number of release audit warnings.
{color:red}-1 core tests{color}. The patch failed these unit tests in
hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-api
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager:
org.apache.hadoop.mapreduce.v2.app.TestRMContainerAllocator
{color:green}+1 contrib tests{color}. The patch passed contrib unit tests.
Test results:
https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/4216//testReport/
Console output:
https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/4216//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
>
>
> 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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