[ https://issues.apache.org/jira/browse/HIVE-8943?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Szehon Ho updated HIVE-8943: ---------------------------- Attachment: (was: HIVE-8943-4.spark.patch) > Fix memory limit check for combine nested mapjoins [Spark Branch] > ----------------------------------------------------------------- > > Key: HIVE-8943 > URL: https://issues.apache.org/jira/browse/HIVE-8943 > Project: Hive > Issue Type: Sub-task > Components: Spark > Affects Versions: spark-branch > Reporter: Szehon Ho > Assignee: Szehon Ho > Attachments: HIVE-8943.1-spark.patch, HIVE-8943.1-spark.patch, > HIVE-8943.2-spark.patch, HIVE-8943.3-spark.patch, HIVE-8943.4-spark.patch > > > Its the opposite problem of what we thought in HIVE-8701. > SparkMapJoinOptimizer does combine nested mapjoins into one work due to > removal of RS for big-table. So we need to enhance the check to calculate if > all the MapJoins in that work (spark-stage) will fit into the memory, > otherwise it might overwhelm memory for that particular spark executor. -- This message was sent by Atlassian JIRA (v6.3.4#6332)