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Posted to issues@spark.apache.org by "Apache Spark (JIRA)" <ji...@apache.org> on 2015/12/18 03:40:46 UTC

[jira] [Commented] (SPARK-12392) Optimize a location order of broadcast blocks by considering preferred local hosts

    [ https://issues.apache.org/jira/browse/SPARK-12392?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15063323#comment-15063323 ] 

Apache Spark commented on SPARK-12392:
--------------------------------------

User 'maropu' has created a pull request for this issue:
https://github.com/apache/spark/pull/10346

> Optimize a location order of broadcast blocks by considering preferred local hosts
> ----------------------------------------------------------------------------------
>
>                 Key: SPARK-12392
>                 URL: https://issues.apache.org/jira/browse/SPARK-12392
>             Project: Spark
>          Issue Type: Improvement
>          Components: Spark Core
>    Affects Versions: 1.5.2
>            Reporter: Takeshi Yamamuro
>
> When multiple workers exist in a host, we can bypass unnecessary remote access for broadcasts; block managers fetch broadcast blocks from the same host instead of remote hosts.



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