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https://issues.apache.org/jira/browse/MAPREDUCE-4980?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16123088#comment-16123088
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Steve Loughran commented on MAPREDUCE-4980:
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If its going through configs & is splnning up a new MR app for each one, so
that bit does need to be isolated. And it does its best with static HDFS & YARN
clusters
Looking at the code, the job it is starting is "SleepJob", which does as it
says: sleeps a long time. Which is why the tests take so long. It is a series
of tests which sleep(). That's also why they set such a big test timeout of
their own.
It does go into the integration test category in terms of processes & work,
except then there's a risk of it not being run on Yetus tests of MAPREDUCE
patches, isn't it? And that could miss things.
FWIW, in hadoop-aws & soon hadoop-azure, we have a "scale" profile which runs
the slower tests: more files, bigger files. Maybe we could have a standard
-Dscale profile, and put this in. So if you don't run with scale, this test
gets skipped.
thx for doing this work BTW. Welcome to the QA team
> 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-4980.1.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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