[jira] [Assigned] (SPARK-18742) readd spark.broadcast.factory for user-defined BroadcastFactory

["Apache Spark (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/SPARK-18742?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Apache Spark reassigned SPARK-18742:
------------------------------------

    Assignee:     (was: Apache Spark)

> readd spark.broadcast.factory for user-defined BroadcastFactory
> ---------------------------------------------------------------
>
>                 Key: SPARK-18742
>                 URL: https://issues.apache.org/jira/browse/SPARK-18742
>             Project: Spark
>          Issue Type: Improvement
>          Components: Spark Core
>            Reporter: Song Jun
>            Priority: Minor
>
> After SPARK-12588 Remove HTTPBroadcast [1], the one and only
> implementation of BroadcastFactory is TorrentBroadcastFactory. No code
> in Spark 2 uses BroadcastFactory (but TorrentBroadcastFactory) however
> the scaladoc says [2]:
> /**
>  * An interface for all the broadcast implementations in Spark (to allow
>  * multiple broadcast implementations). SparkContext uses a user-specified
>  * BroadcastFactory implementation to instantiate a particular broadcast for the
>  * entire Spark job.
>  */
> which is not correct since there is no way to plug in a custom
> user-specified BroadcastFactory.
> It is better to readd spark.broadcast.factory for user-defined BroadcastFactory
>  
> [1] https://issues.apache.org/jira/browse/SPARK-12588
> [2] https://github.com/apache/spark/blob/master/core/src/main/scala/org/apache/spark/broadcast/BroadcastFactory.scala#L25-L30



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