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https://issues.apache.org/jira/browse/SPARK-3431?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14239988#comment-14239988
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Sean Owen commented on SPARK-3431:
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Hm. Well, when I run {{BlockTransferMessagesSuite}} by itself in my IDE, it
also fails. I'm wondering if we're simply discovering that lots of the Java
tests don't actually succeed. Step 1 may be SPARK-4159, getting Java tests
running too. I think I can do that. Once that's cleared up, which will entail
something a lot like my patch here, I think it's easier to move forward
(possibly) with surefire for all, parallel tests.
> 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
> Attachments: SPARK-3431-srowen-attempt.patch
>
>
> 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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