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https://issues.apache.org/jira/browse/SPARK-3431?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14143744#comment-14143744
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Nicholas Chammas commented on SPARK-3431:
-----------------------------------------

I see. I'll try to look into it then. I don't know much about Maven, frankly, 
but this sounds doable for the relative n00b.

Since for starters we're just gonna try parallelizing the execution of entire 
test suites, we may not need to make many modifications to the tests upfront. 
We'll see.

> 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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