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  1. Spark
  2. SPARK-12392

Optimize a location order of broadcast blocks by considering preferred local hosts

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Details

    • Improvement
    • Status: Resolved
    • Major
    • Resolution: Fixed
    • 1.5.2
    • 2.0.0
    • Spark Core
    • None

    Description

      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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            maropu Takeshi Yamamuro
            maropu Takeshi Yamamuro
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