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https://issues.apache.org/jira/browse/SPARK-32267?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17155052#comment-17155052
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Hyukjin Kwon commented on SPARK-32267:
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Seems the situation got better after Jenkins rebooting. I will revisit this
ticket when it starts to happen again.
> Decrease parallelism of PySpark tests on Jenkins
> ------------------------------------------------
>
> Key: SPARK-32267
> URL: https://issues.apache.org/jira/browse/SPARK-32267
> Project: Spark
> Issue Type: Test
> Components: Project Infra, PySpark
> Affects Versions: 2.4.6, 3.0.0, 3.1.0
> Reporter: Hyukjin Kwon
> Assignee: Hyukjin Kwon
> Priority: Major
>
> PySpark tests became flaky apparently due to the machines being slow. The
> parallelism of PySpark increased at SPARK-26148 to speed up.
> Maybe we should decrease it to make the test stability better. It will only
> increase around 10 minutes which is rather a small portion compared to 6 ~ 7
> hours in total testing time.
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