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Posted to reviews@spark.apache.org by GitBox <gi...@apache.org> on 2022/02/22 18:01:25 UTC

[GitHub] [spark] kevins-29 commented on pull request #35613: [SPARK-38273][SQL] Fix native memory leak in SparkPlan when spark.io.compression.codec=zstd

kevins-29 commented on pull request #35613:
URL: https://github.com/apache/spark/pull/35613#issuecomment-1048066739


   Hi @dongjoon-hyun,
   
   I ran the above tests on a build from master. The test was run using AppleJDK-11.0.5.10.1.
   
   Did run export `SPARK_SUBMIT_OPTS="-XX:+AlwaysPreTouch --Xms=1g"` before starting spark-shell? The reason for this is that we want to "lock" in the amount of RSS that is taken up by the heap at the start of the process, then any further growth can be attributed to native libraries.
   
   Also the assumption was the default `--Xmx=1g` would be used.


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