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Posted to issues@spark.apache.org by "Takeshi Yamamuro (JIRA)" <ji...@apache.org> on 2015/12/17 06:49:46 UTC

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

Takeshi Yamamuro created SPARK-12392:
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             Summary: 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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