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https://issues.apache.org/jira/browse/SPARK-18742?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Sean Owen resolved SPARK-18742.
-------------------------------
Resolution: Fixed
Fix Version/s: 2.2.0
Issue resolved by pull request 16173
[https://github.com/apache/spark/pull/16173]
> Clarify that user-defined BroadcastFactory is not supported
> -----------------------------------------------------------
>
> Key: SPARK-18742
> URL: https://issues.apache.org/jira/browse/SPARK-18742
> Project: Spark
> Issue Type: Improvement
> Components: Documentation
> Reporter: Song Jun
> Priority: Trivial
> Fix For: 2.2.0
>
>
> After SPARK-12588 Remove HTTPBroadcast [1], the one and only implementation
> of BroadcastFactory is TorrentBroadcastFactory and the
> spark.broadcast.factory conf has removed.
> 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.
> */
> so we should modify the comment that SparkContext will not use a
> user-specified BroadcastFactory implementation
> [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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