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Posted to issues@spark.apache.org by "Hyukjin Kwon (JIRA)" <ji...@apache.org> on 2019/05/21 05:35:30 UTC

[jira] [Updated] (SPARK-3137) Use finer grained locking in TorrentBroadcast.readObject

     [ https://issues.apache.org/jira/browse/SPARK-3137?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Hyukjin Kwon updated SPARK-3137:
--------------------------------
    Labels: bulk-closed  (was: )

> 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
>            Priority: Major
>              Labels: bulk-closed
>
> 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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