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https://issues.apache.org/jira/browse/MAPREDUCE-5481?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13811316#comment-13811316
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Jason Lowe edited comment on MAPREDUCE-5481 at 11/1/13 3:13 PM:
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This is not localized to just TestUberAM, as all uber jobs with reducers will
currently hang like this. This appears to have been broken when MAPREDUCE-434
was committed, since it changed the way reducers locate map outputs when not
running via normal containers.
Updating the summary to better reflect the issue.
was (Author: jlowe):
This is not localized to just TestUberAM, as all uber jobs with reducers will
currently hang like this. I believe the test is This appears to have been
broken when MAPREDUCE-434 was committed, as that changed the way reducers
locate map outputs when not running via normal containers.
Updating the summary to better reflect the issue.
> Uber job reducers hang waiting to shuffle map outputs
> -----------------------------------------------------
>
> Key: MAPREDUCE-5481
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-5481
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Components: mrv2, test
> Affects Versions: 3.0.0
> Reporter: Jason Lowe
> Assignee: Xuan Gong
> Priority: Blocker
> Attachments: syslog
>
>
> TestUberAM has been timing out on trunk for some time now and surefire then
> fails the build. I'm not able to reproduce it locally, but the Jenkins
> builds have been seeing it fairly consistently. See
> https://builds.apache.org/job/Hadoop-Mapreduce-trunk/1529/console
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