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Posted to issues@spark.apache.org by "Josh Rosen (JIRA)" <ji...@apache.org> on 2016/09/02 00:15:22 UTC

[jira] [Resolved] (SPARK-16302) Set the right number of partitions for reading data from a local collection.

     [ https://issues.apache.org/jira/browse/SPARK-16302?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Josh Rosen resolved SPARK-16302.
--------------------------------
       Resolution: Fixed
    Fix Version/s: 2.1.0

Issue resolved by pull request 13979
[https://github.com/apache/spark/pull/13979]

> Set the right number of partitions for reading data from a local collection.
> ----------------------------------------------------------------------------
>
>                 Key: SPARK-16302
>                 URL: https://issues.apache.org/jira/browse/SPARK-16302
>             Project: Spark
>          Issue Type: Improvement
>          Components: SQL
>            Reporter: Lianhui Wang
>            Priority: Minor
>             Fix For: 2.1.0
>
>
> query: val df = Seq[(Int, Int)]().toDF("key", "value").count it always use defaultParallelism tasks. So i cause run empty or small tasks.



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