[ https://issues.apache.org/jira/browse/SPARK-24941?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Jiang Xingbo updated SPARK-24941: --------------------------------- Target Version/s: 3.0.0 > Add RDDBarrier.coalesce() function > ---------------------------------- > > Key: SPARK-24941 > URL: https://issues.apache.org/jira/browse/SPARK-24941 > Project: Spark > Issue Type: Improvement > Components: Spark Core > Affects Versions: 2.4.0 > Reporter: Jiang Xingbo > Priority: Major > > https://github.com/apache/spark/pull/21758#discussion_r204917245 > The number of partitions from the input data can be unexpectedly large, eg. > if you do > {code} > sc.textFile(...).barrier().mapPartitions() > {code} > The number of input partitions is based on the hdfs input splits. We shall > provide a way in RDDBarrier to enable users to specify the number of tasks in > a barrier stage. Maybe something like RDDBarrier.coalesce(numPartitions: Int) > . -- This message was sent by Atlassian JIRA (v7.6.3#76005) --------------------------------------------------------------------- To unsubscribe, e-mail: issues-unsubscr...@spark.apache.org For additional commands, e-mail: issues-h...@spark.apache.org