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https://issues.apache.org/jira/browse/SPARK-566?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Patrick Wendell resolved SPARK-566.
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Resolution: Fixed
Thew shuffle and broadcast implementations have been re-written at least twice
since this was created. I'm gonna close it as it's no longer relevant.
> Replace polling+sleeping with semaphores in broadcast and shuffle
> -----------------------------------------------------------------
>
> Key: SPARK-566
> URL: https://issues.apache.org/jira/browse/SPARK-566
> Project: Spark
> Issue Type: Improvement
> Reporter: Mosharaf Chowdhury
>
> All the FixedThreadPools are doing this right now. Must be fixed.
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