[ https://issues.apache.org/jira/browse/SPARK-16302?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Lianhui Wang updated SPARK-16302: --------------------------------- Summary: Set the default number of partitions for reading data from a local collection. (was: LocalTableScanExec always use defaultParallelism tasks even though it is very small seq.) > Set the default 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 > > query: val df = Seq[(Int, Int)]().toDF("key", "value").count it always use > defaultParallelism tasks. So i cause run empty or small tasks. -- This message was sent by Atlassian JIRA (v6.3.4#6332) --------------------------------------------------------------------- To unsubscribe, e-mail: issues-unsubscr...@spark.apache.org For additional commands, e-mail: issues-h...@spark.apache.org