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From "Saikat Kanjilal (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (SPARK-9487) Use the same num. worker threads in Scala/Python unit tests
Date Sun, 23 Oct 2016 16:06:58 GMT

    [ https://issues.apache.org/jira/browse/SPARK-9487?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15599904#comment-15599904
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Saikat Kanjilal commented on SPARK-9487:
----------------------------------------

Ping on this, [~holdenk] can you let me know if I can move ahead with the above approach.
Thanks

> Use the same num. worker threads in Scala/Python unit tests
> -----------------------------------------------------------
>
>                 Key: SPARK-9487
>                 URL: https://issues.apache.org/jira/browse/SPARK-9487
>             Project: Spark
>          Issue Type: Improvement
>          Components: PySpark, Spark Core, SQL, Tests
>    Affects Versions: 1.5.0
>            Reporter: Xiangrui Meng
>              Labels: starter
>         Attachments: ContextCleanerSuiteResults, HeartbeatReceiverSuiteResults
>
>
> In Python we use `local[4]` for unit tests, while in Scala/Java we use `local[2]` and
`local` for some unit tests in SQL, MLLib, and other components. If the operation depends
on partition IDs, e.g., random number generator, this will lead to different result in Python
and Scala/Java. It would be nice to use the same number in all unit tests.



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