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  1. Hive
  2. HIVE-6924

MapJoinKeyBytes::hashCode() should use Murmur hash

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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        is superceded by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

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            sershe Sergey Shelukhin Assign to me
            sershe Sergey Shelukhin
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            Dates

              Created:
              Updated:
              Resolved:

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