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https://issues.apache.org/jira/browse/SPARK-3431?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14168948#comment-14168948
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Patrick Wendell commented on SPARK-3431:
----------------------------------------

If we can get the maven build times down to be similar or less than that of 
SBT, I'd prefer to use it to run the tests. So looking at parallel test 
execution in Maven would be great.

> Parallelize execution of tests
> ------------------------------
>
>                 Key: SPARK-3431
>                 URL: https://issues.apache.org/jira/browse/SPARK-3431
>             Project: Spark
>          Issue Type: Improvement
>          Components: Build
>            Reporter: Nicholas Chammas
>
> Running all the tests in {{dev/run-tests}} takes up to 2 hours. A common 
> strategy to cut test time down is to parallelize the execution of the tests. 
> Doing that may in turn require some prerequisite changes to be made to how 
> certain tests run.



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