spark-issues mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Liang-Chi Hsieh (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (SPARK-17556) Executor side broadcast for broadcast joins
Date Fri, 23 Sep 2016 13:40:20 GMT

    [ https://issues.apache.org/jira/browse/SPARK-17556?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15516478#comment-15516478
] 

Liang-Chi Hsieh commented on SPARK-17556:
-----------------------------------------

[~scwf]I already submitted a PR for this. Can you also help to review it? Thanks.

> Executor side broadcast for broadcast joins
> -------------------------------------------
>
>                 Key: SPARK-17556
>                 URL: https://issues.apache.org/jira/browse/SPARK-17556
>             Project: Spark
>          Issue Type: New Feature
>          Components: Spark Core, SQL
>            Reporter: Reynold Xin
>         Attachments: executor broadcast.pdf
>
>
> Currently in Spark SQL, in order to perform a broadcast join, the driver must collect
the result of an RDD and then broadcast it. This introduces some extra latency. It might be
possible to broadcast directly from executors.



--
This message was sent by Atlassian JIRA
(v6.3.4#6332)

---------------------------------------------------------------------
To unsubscribe, e-mail: issues-unsubscribe@spark.apache.org
For additional commands, e-mail: issues-help@spark.apache.org


Mime
View raw message