David Moravek created BEAM-5987: ----------------------------------- Summary: Spark SideInputReader performance Key: BEAM-5987 URL: https://issues.apache.org/jira/browse/BEAM-5987 Project: Beam Issue Type: Bug Components: runner-spark Affects Versions: 2.8.0 Reporter: David Moravek Assignee: David Moravek Fix For: 2.9.0
We did some profiling of a spark job and 90% of the application time was spent on side input deserialization. !image-2018-11-06-13-06-04-350.png! For spark, an easy fix is to cache materialized side inputs per bundle. This improved running time of the profiled job from 3 hours to 30 minutes. -- This message was sent by Atlassian JIRA (v7.6.3#76005)