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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

    • Type: Improvement
    • Status: Resolved
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: 1.5.2
    • Fix Version/s: 2.0.0
    • Component/s: Spark Core
    • Labels:
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    • Target Version/s:

      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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            • Assignee:
              maropu Takeshi Yamamuro Assign to me
              Reporter:
              maropu Takeshi Yamamuro

              Dates

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                Updated:
                Resolved:

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