Erik van Oosten created SPARK-27025: ---------------------------------------
Summary: Speed up toLocalIterator Key: SPARK-27025 URL: https://issues.apache.org/jira/browse/SPARK-27025 Project: Spark Issue Type: Wish Components: Spark Core Affects Versions: 2.3.3 Reporter: Erik van Oosten Method {{toLocalIterator}} fetches the partitions to the driver one by one. However, as far as I can see, any required computation for the yet-to-be-fetched-partitions is not kicked off until it is fetched. Effectively only one partition is being computed at the same time. Desired behavior: immediately start calculation of all partitions while retaining the download-a-partition at a time behavior. -- This message was sent by Atlassian JIRA (v7.6.3#76005) --------------------------------------------------------------------- To unsubscribe, e-mail: issues-unsubscr...@spark.apache.org For additional commands, e-mail: issues-h...@spark.apache.org