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https://issues.apache.org/jira/browse/SPARK-3137?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Reynold Xin updated SPARK-3137:
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Component/s: Spark Core
Target Version/s: 1.2.0
> Use finer grained locking in TorrentBroadcast.readObject
> --------------------------------------------------------
>
> Key: SPARK-3137
> URL: https://issues.apache.org/jira/browse/SPARK-3137
> Project: Spark
> Issue Type: Sub-task
> Components: Spark Core
> Reporter: Reynold Xin
>
> TorrentBroadcast.readObject uses a global lock so only one task can be
> fetching the blocks at the same time.
> This is not optimal if we are running multiple stages concurrently because
> they should be able to independently fetch their own blocks.
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