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https://issues.apache.org/jira/browse/MAPREDUCE-4794?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13591410#comment-13591410
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Hudson commented on MAPREDUCE-4794:
-----------------------------------
Integrated in Hadoop-Mapreduce-trunk #1360 (See
[https://builds.apache.org/job/Hadoop-Mapreduce-trunk/1360/])
MAPREDUCE-4794. DefaultSpeculator generates error messages on normal
shutdown (Jason Lowe via jeagles) (Revision 1451826)
Result = SUCCESS
jeagles :
http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1451826
Files :
* /hadoop/common/trunk/hadoop-mapreduce-project/CHANGES.txt
*
/hadoop/common/trunk/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app/src/main/java/org/apache/hadoop/mapreduce/v2/app/speculate/DefaultSpeculator.java
> DefaultSpeculator generates error messages on normal shutdown
> -------------------------------------------------------------
>
> Key: MAPREDUCE-4794
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-4794
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Components: applicationmaster
> Affects Versions: 0.23.3, 2.0.1-alpha
> Reporter: Jason Lowe
> Assignee: Jason Lowe
> Labels: usability
> Fix For: 3.0.0, 0.23.7, 2.0.4-beta
>
> Attachments: MAPREDUCE-4794.patch
>
>
> DefaultSpeculator can log the following error message on a normal shutdown of
> the ApplicationMaster:
> {noformat}
> 2012-11-13 01:35:31,841 ERROR [DefaultSpeculator background processing]
> org.apache.hadoop.mapreduce.v2.app.speculate.DefaultSpeculator: Background
> thread returning, interrupted : java.lang.InterruptedException
> {noformat}
> and in addition for some reason it logs the corresponding backtrace to stdout.
> Like the errors fixed in MAPREDUCE-4741, this error message in the syslog and
> backtrace on stdout can be confusing to users as to whether the job really
> succeeded.
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