[ https://issues.apache.org/jira/browse/SPARK-33531?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Mori[A]rty updated SPARK-33531: ------------------------------- Summary: [SQL] Reduce shuffle task number when calling CollectLimitExec#executeToIterator (was: [SQL] Avoid shuffle when calling CollectLimitExec#executeToIterator) > [SQL] Reduce shuffle task number when calling > CollectLimitExec#executeToIterator > -------------------------------------------------------------------------------- > > Key: SPARK-33531 > URL: https://issues.apache.org/jira/browse/SPARK-33531 > Project: Spark > Issue Type: Improvement > Components: SQL > Affects Versions: 2.4.0, 3.0.1 > Reporter: Mori[A]rty > Priority: Major > > Using a new method SparkPlan#executeTakeToIterator to implement > CollectLimitExec#executeToIterator to avoid shuffle caused by invoking parent > method SparkPlan#executeToIterator. > When running a SparkThriftServer and > spark.sql.thriftServer.incrementalCollect is enabled, extra shuffle will lead > to a significant performance issue for SQLs terminated with LIMIT. -- This message was sent by Atlassian Jira (v8.3.4#803005) --------------------------------------------------------------------- To unsubscribe, e-mail: issues-unsubscr...@spark.apache.org For additional commands, e-mail: issues-h...@spark.apache.org