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From "Sean Owen (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (SPARK-1122) Collect the RDD and send to each partition to form a new RDD
Date Fri, 23 Jan 2015 12:32:34 GMT

    [ 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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