[ https://issues.apache.org/jira/browse/SPARK-38410?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Apache Spark reassigned SPARK-38410: ------------------------------------ Assignee: Apache Spark > Support specify initial partition number for rebalance > ------------------------------------------------------ > > Key: SPARK-38410 > URL: https://issues.apache.org/jira/browse/SPARK-38410 > Project: Spark > Issue Type: Sub-task > Components: SQL > Affects Versions: 3.3.0 > Reporter: XiDuo You > Assignee: Apache Spark > Priority: Major > > Rebalance partitions resolve the skew issue during shuffle dataset. It always > returns an indeterminate partition number so at the beginning we do not pass > partition as parameter. > > However, we find the initial partition number can affect the data compression > ratio. So it would be better to make the partition number isolation. > > Note that, it only affects the initial partition number at map side during > shuffle. -- This message was sent by Atlassian Jira (v8.20.1#820001) --------------------------------------------------------------------- To unsubscribe, e-mail: issues-unsubscr...@spark.apache.org For additional commands, e-mail: issues-h...@spark.apache.org