Hi, I used the below in the Spark Submit for using G1GC -
--conf "spark.executor.extraJavaOptions=-XX:+UseG1GC" Now, I want to use *-XX: -ResizePLAB *of the G1GC to control to avoid performance degradation caused by a large number of thread communications. How to do it? I tried submitting in the similar fashion - --conf "spark.executor.extraJavaOptions=-XX:+UseG1GC" --conf "spark.executor.extraJavaOptions=*-XX: -ResizePLAB*", but it doesn't work. Thanks, Aakash.