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https://issues.apache.org/jira/browse/SPARK-11048?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Ted Yu resolved SPARK-11048.
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Resolution: Won't Fix
> Use ForkJoinPool as executorService
> -----------------------------------
>
> Key: SPARK-11048
> URL: https://issues.apache.org/jira/browse/SPARK-11048
> Project: Spark
> Issue Type: Improvement
> Reporter: Ted Yu
> Priority: Minor
>
> ForkJoinPool: threads are created only if there are waiting tasks. They
> expire after 2seconds (it's
> hardcoded in the jdk code).
> ForkJoinPool is better than ThreadPoolExecutor
> It's available in the JDK 1.7
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