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Posted to issues@spark.apache.org by "Apache Spark (JIRA)" <ji...@apache.org> on 2016/06/29 19:01:09 UTC
[jira] [Assigned] (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 ]
Apache Spark reassigned SPARK-16302:
------------------------------------
Assignee: Apache Spark
> 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: Bug
> Components: SQL
> Reporter: Lianhui Wang
> Assignee: Apache Spark
>
> 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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