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https://issues.apache.org/jira/browse/SPARK-24831?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Dongjoon Hyun resolved SPARK-24831.
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Resolution: Incomplete
Sorry, but JIRA is not for questions.
> Spark Executor class create new serializer each time
> ----------------------------------------------------
>
> Key: SPARK-24831
> URL: https://issues.apache.org/jira/browse/SPARK-24831
> Project: Spark
> Issue Type: Improvement
> Components: Spark Core
> Affects Versions: 2.4.0
> Reporter: Izek Greenfield
> Priority: Major
>
> When I look in the code I find this line:
> (org.apache.spark.executor.Executor: 319)
> val resultSer = env.serializer.newInstance()
> why not hold this in threadLocal and reuse?
> [questioin in
> stackOverflow|https://stackoverflow.com/questions/51298877/spark-executor-class-create-new-serializer-each-time]
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