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https://issues.apache.org/jira/browse/SPARK-3431?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14240530#comment-14240530
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Nicholas Chammas commented on SPARK-3431:
-----------------------------------------
For the record, the suite that I'm running is as follows:
{code}
sbt/sbt -Pyarn -Phadoop-2.3 -Dhadoop.version=2.3.0 -Pkinesis-asl -Phive
-Phive-thriftserver 'testOnly
org.apache.spark.sql.hive.execution.HiveQuerySuite'
{code}
I modified it to print the current working directory and confirmed that at
least that is different when JVMs are forked vs. not forked (i.e. I just
comment out [this
line|https://github.com/apache/spark/pull/3564/files#diff-c3580fe26fb42eb3aac6e180ae11e947R440]).
> 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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