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Posted to issues@spark.apache.org by "Sean Owen (JIRA)" <ji...@apache.org> on 2015/01/23 13:32:34 UTC
[jira] [Commented] (SPARK-1122) Collect the RDD and send to each
partition to form a new RDD
[ https://issues.apache.org/jira/browse/SPARK-1122?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14289180#comment-14289180 ]
Sean Owen commented on SPARK-1122:
----------------------------------
Is this still live? It seems like this doesn't need special operations. You can collect() an RDD and broadcast it, right?
> Collect the RDD and send to each partition to form a new RDD
> ------------------------------------------------------------
>
> Key: SPARK-1122
> URL: https://issues.apache.org/jira/browse/SPARK-1122
> Project: Spark
> Issue Type: New Feature
> Components: Spark Core
> Reporter: Shuo Xiang
> Priority: Minor
>
> Two methods (allCollect, allCollectBroadcast) are added to RDD[T], which output a new RDD[Array[T]] instance with each partition containing all of the
> records of the original RDD stored in a single Array[T] instance (the
> same as RDD.collect). This functionality can be useful in machine learning tasks that require sharing updated parameters across partitions.
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