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Fei Wang commented on SPARK-8890: --------------------------------- should this be part of tungsten? > Reduce memory consumption for dynamic partition insert > ------------------------------------------------------ > > Key: SPARK-8890 > URL: https://issues.apache.org/jira/browse/SPARK-8890 > Project: Spark > Issue Type: Sub-task > Components: SQL > Reporter: Reynold Xin > Assignee: Michael Armbrust > Priority: Critical > Fix For: 1.5.0 > > > Currently, InsertIntoHadoopFsRelation can run out of memory if the number of > table partitions is large. The problem is that we open one output writer for > each partition, and when data are randomized and when the number of > partitions is large, we open a large number of output writers, leading to OOM. > The solution here is to inject a sorting operation once the number of active > partitions is beyond a certain point (e.g. 50?) -- 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