Davies Liu created SPARK-10494: ---------------------------------- Summary: Multiple Python UDFs together with aggregation or sort merge join may cause OOM (failed to acquire memory) Key: SPARK-10494 URL: https://issues.apache.org/jira/browse/SPARK-10494 Project: Spark Issue Type: Bug Components: PySpark, SQL Affects Versions: 1.5.0 Reporter: Davies Liu Priority: Critical
The RDD cache for Python UDF is removed in 1.4, then N Python UDFs in one query stage could end up evaluate upstream (SparkPlan) 2^N times. In 1.5, If there is aggregation or sort merge join in upstream SparkPlan, they will cause OOM (failed to acquire memory). -- 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