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https://issues.apache.org/jira/browse/MAPREDUCE-4980?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16133175#comment-16133175
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Jason Lowe commented on MAPREDUCE-4980:
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I'm not sure adding more time to TestMapReduceJobControl is going to help, as
it looked like a surefire timeout rather than a junit timeout. MAPREDUCE-6747
is tracking the issue. What I believe is happening is that the code is trying
to kill a local job (which involves trying to interrupt a thread) and that
interrupt gets swallowed at some point. It then spins waiting for a job to
exit that isn't going to exit since it wasn't successfully interrupted.
Eventually surefire steps in and kills the whole mess without a lot of
helpfulness. For this JIRA I'd be tempted to slap a reasonable junit timeout
on testJobControlWithKillJob so we don't wait the full surefire timeout when it
is going to hang. We can fix that test in MAPREDUCE-6747.
Still haven't been able to reproduce the TestNNBench issue, but I've only been
able to take a couple of cracks at it in my spare time. Will try to get a few
more tries in the next few days.
> Parallel test execution of hadoop-mapreduce-client-core
> -------------------------------------------------------
>
> Key: MAPREDUCE-4980
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-4980
> Project: Hadoop Map/Reduce
> Issue Type: Test
> Components: test
> Affects Versions: 3.0.0-alpha1
> Reporter: Tsuyoshi Ozawa
> Assignee: Andrey Klochkov
> Attachments: MAPREDUCE-4980.010.patch, MAPREDUCE-4980.011.patch,
> MAPREDUCE-4980.012.patch, MAPREDUCE-4980.013.patch, MAPREDUCE-4980.014.patch,
> MAPREDUCE-4980.1.patch, MAPREDUCE-4980--n3.patch, MAPREDUCE-4980--n4.patch,
> MAPREDUCE-4980--n5.patch, MAPREDUCE-4980--n6.patch, MAPREDUCE-4980--n7.patch,
> MAPREDUCE-4980--n7.patch, MAPREDUCE-4980--n8.patch, MAPREDUCE-4980.patch
>
>
> The maven surefire plugin supports parallel testing feature. By using it, the
> tests can be run more faster.
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