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https://issues.apache.org/jira/browse/HADOOP-11984?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14906605#comment-14906605
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Haohui Mai commented on HADOOP-11984:
-------------------------------------

Thanks [~cnauroth]. I think it makes a lot of sense.

I'm leaning towards to put it in HDFS as well. The sets of failed tests are 
fairly consistent with what I have seen in the HDFS-6200 work. Having this 
patch in obviously does not fix the tests, but it'll reduce the turn around 
time dramatically (saving 3hrs!) which makes fixing these tests more 
productive. :-)


> Enable parallel JUnit tests in pre-commit.
> ------------------------------------------
>
>                 Key: HADOOP-11984
>                 URL: https://issues.apache.org/jira/browse/HADOOP-11984
>             Project: Hadoop Common
>          Issue Type: Improvement
>          Components: build, scripts, test
>            Reporter: Chris Nauroth
>            Assignee: Chris Nauroth
>         Attachments: HADOOP-11984.001.patch, HADOOP-11984.002.patch, 
> HADOOP-11984.003.patch, HADOOP-11984.004.patch, HADOOP-11984.005.patch, 
> HADOOP-11984.006.patch, HADOOP-11984.007.patch, HADOOP-11984.008.patch, 
> HADOOP-11984.009.patch, HADOOP-11984.010.patch, HADOOP-11984.011.patch, 
> HADOOP-11984.013.patch, HADOOP-11984.014.patch, HADOOP-11984.015.patch, 
> HADOOP-11984.016.patch, HADOOP-11984.017.patch, HADOOP-11984.019.patch, 
> HADOOP-11984.020.patch, HADOOP-11984.021.patch, 
> HADOOP-11984.HADOOP-12111.018.patch
>
>
> HADOOP-9287 and related issues implemented the parallel-tests Maven profile 
> for running JUnit tests in multiple concurrent processes.  This issue 
> proposes to activate that profile during pre-commit to speed up execution.



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