Uploaded image for project: 'Hive'
  1. Hive
  2. HIVE-8042

Optionally allow move tasks to run in parallel

Log workAgile BoardRank to TopRank to BottomBulk Copy AttachmentsBulk Move AttachmentsVotersWatch issueWatchersCreate sub-taskConvert to sub-taskMoveLinkCloneLabelsUpdate Comment AuthorReplace String in CommentUpdate Comment VisibilityDelete Comments
    XMLWordPrintableJSON

Details

    • Improvement
    • Status: Closed
    • Major
    • Resolution: Fixed
    • None
    • 0.14.0
    • None
    • 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-8042.1.patch
          29 kB
          Gunther Hagleitner
        2. HIVE-8042.2.patch
          28 kB
          Gunther Hagleitner
        3. HIVE-8042.3.patch
          27 kB
          Gunther Hagleitner

        Issue Links

        Activity

          This comment will be Viewable by All Users Viewable by All Users
          Cancel

          People

            hagleitn Gunther Hagleitner Assign to me
            hagleitn Gunther Hagleitner
            Votes:
            0 Vote for this issue
            Watchers:
            7 Start watching this issue

            Dates

              Created:
              Updated:
              Resolved:

              Slack

                Issue deployment