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Posted to mapreduce-issues@hadoop.apache.org by "Jonathan Eagles (JIRA)" <ji...@apache.org> on 2013/03/02 04:39:16 UTC
[jira] [Commented] (MAPREDUCE-4794) DefaultSpeculator generates
error messages on normal shutdown
[ https://issues.apache.org/jira/browse/MAPREDUCE-4794?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13591256#comment-13591256 ]
Jonathan Eagles commented on MAPREDUCE-4794:
--------------------------------------------
+1. Thanks for the patch Jason.
> 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
> 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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