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https://issues.apache.org/jira/browse/SPARK-3431?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14238686#comment-14238686
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Sean Owen commented on SPARK-3431:
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What are the errors? Problems with the tests or the test config?
I don't think you need to make the plugin a dependency since it isn't something
the code uses. You declare and configure it in <pluginManagement>, and then
also refer to it under <build> so that all submodules activate surefire.
> 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
> Assignee: 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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