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  1. Hive
  2. HIVE-7926 long-lived daemons for query fragment execution, I/O and caching
  3. HIVE-10162

LLAP: Avoid deserializing the plan > 1 times in a single thread

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    Details

    • Type: Sub-task
    • Status: Closed
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: llap
    • Fix Version/s: llap
    • Component/s: None
    • Labels:
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      Description

      Kryo shows up in the critical hot-path for LLAP when using a plan with a very large filter condition, due to the fact that the plan is deserialized more than once for each task.

        Attachments

        1. HIVE-10162.1.patch
          0.9 kB
          Gunther Hagleitner
        2. deserialize-plan-2.png
          103 kB
          Gopal Vijayaraghavan
        3. deserialize-plan-1.png
          79 kB
          Gopal Vijayaraghavan

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              • Assignee:
                hagleitn Gunther Hagleitner
                Reporter:
                gopalv Gopal Vijayaraghavan
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                Dates

                • Created:
                  Updated:
                  Resolved: