[ https://issues.apache.org/jira/browse/SPARK-4410?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Michael Armbrust resolved SPARK-4410. ------------------------------------- Resolution: Fixed Fix Version/s: 1.2.0 Target Version/s: 1.2.0 > Support for external sort > ------------------------- > > Key: SPARK-4410 > URL: https://issues.apache.org/jira/browse/SPARK-4410 > Project: Spark > Issue Type: Improvement > Components: SQL > Reporter: Michael Armbrust > Assignee: Michael Armbrust > Priority: Critical > Fix For: 1.2.0 > > > When any given key is of too high cardinality the current sorting code can > tip over (since it loads a whole partition into memory). I propose we add > optional support for using sparks built in external sorting mechanism. It > can be off by default, but if we determine this code path does not regress > performance we can turn it on by default in the future. -- 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