Uploaded image for project: 'Hive'
  1. Hive
  2. HIVE-6924

MapJoinKeyBytes::hashCode() should use Murmur hash

    XMLWordPrintableJSON

Details

    • Improvement
    • Status: Closed
    • Major
    • Resolution: Fixed
    • None
    • 0.14.0
    • None
    • None

    Description

      Existing hashCode is bad, causes HashMap to cluster

      Attachments

        1. HIVE-6924.patch
          1 kB
          Sergey Shelukhin
        2. HIVE-6924.01.patch
          1 kB
          Sergey Shelukhin

        Issue Links

          is superceded by

          Bug - A problem which impairs or prevents the functions of the product. HIVE-9331 get rid of pre-optimized-hashtable memory optimizations

          • Major - Major loss of function.
          • Resolved
          relates to

          Bug - A problem which impairs or prevents the functions of the product. HIVE-7121 Use murmur hash to distribute HiveKey

          • Major - Major loss of function.
          • Resolved

          Activity

            People

              sershe Sergey Shelukhin
              sershe Sergey Shelukhin
              Votes:
              0 Vote for this issue
              Watchers:
              6 Start watching this issue

              Dates

                Created:
                Updated:
                Resolved: