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  1. Hive
  2. HIVE-8042

Optionally allow move tasks to run in parallel

    Details

    • Type: Improvement
    • Status: Closed
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: None
    • Fix Version/s: 0.14.0
    • Component/s: None
    • Labels:
      None

      Description

      hive.exec.parallel allows one to run different stages of a query in parallel. However that applies only to map-reduce tasks. When using large multi insert queries there are many MoveTasks that are all executed in sequence on the client. There's no real reason for that - they could be run in parallel as well (i.e.: the stage graph captures the dependencies and knows which tasks can happen in parallel).

        Attachments

        1. HIVE-8042.3.patch
          27 kB
          Gunther Hagleitner
        2. HIVE-8042.2.patch
          28 kB
          Gunther Hagleitner
        3. HIVE-8042.1.patch
          29 kB
          Gunther Hagleitner

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              • Assignee:
                hagleitn Gunther Hagleitner
                Reporter:
                hagleitn Gunther Hagleitner
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                • Created:
                  Updated:
                  Resolved: