[ https://issues.apache.org/jira/browse/SPARK-2253?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Reynold Xin updated SPARK-2253: ------------------------------- Assignee: (was: Reynold Xin) > Disable partial aggregation automatically when reduction factor is low > ---------------------------------------------------------------------- > > Key: SPARK-2253 > URL: https://issues.apache.org/jira/browse/SPARK-2253 > Project: Spark > Issue Type: Improvement > Components: Spark Core > Reporter: Reynold Xin > Fix For: 1.3.0 > > > Once we see enough number of rows in partial aggregation and don't observe > any reduction, Aggregator should just turn off partial aggregation. This > reduces memory usage for high cardinality aggregations. > This one is for Spark core. There is another ticket tracking this for SQL. -- 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