Uploaded image for project: 'Hive'
  1. Hive
  2. HIVE-10123

Hybrid grace Hash join : Use estimate key count from stats to initialize BytesBytesMultiHashMap

    XMLWordPrintableJSON

    Details

    • Type: Bug
    • Status: Closed
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: 1.2.0
    • Fix Version/s: 1.2.0
    • Component/s: Hive
    • Labels:
      None

      Description

      Hybrid grace Hash join is not using estimated number of rows from the statistics to initialize BytesBytesMultiHashMap.

      Add some logging to BytesBytesMultiHashMap to track get probes and use msec for expandAndRehash as us overflow.

        Attachments

        1. HIVE-10123.01.patch
          9 kB
          Mostafa Mokhtar
        2. HIVE-10123.02.patch
          10 kB
          Mostafa Mokhtar

          Issue Links

            Activity

              People

              • Assignee:
                mmokhtar Mostafa Mokhtar
                Reporter:
                mmokhtar Mostafa Mokhtar
              • Votes:
                0 Vote for this issue
                Watchers:
                3 Start watching this issue

                Dates

                • Created:
                  Updated:
                  Resolved: