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  1. Hive
  2. HIVE-9331

get rid of pre-optimized-hashtable memory optimizations

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Details

    • Bug
    • Status: Resolved
    • Major
    • Resolution: Fixed
    • 0.15.0
    • 1.1.0
    • None
    • None

    Description

      These were added in 13 because optimized hashtable couldn't make it in; they reduced memory usage by some amount (10-25%), and informed the design of the optimized hashtable, but now extra settings and code branches are just confusing and may have their own bugs. Might as well remove them.

      Attachments

        1. HIVE-9331.02.patch
          47 kB
          Sergey Shelukhin
        2. HIVE-9331.01.patch
          46 kB
          Sergey Shelukhin
        3. HIVE-9331.01.patch
          45 kB
          Sergey Shelukhin
        4. HIVE-9331.patch
          44 kB
          Szehon Ho
        5. HIVE-9331.patch
          44 kB
          Sergey Shelukhin

        Issue Links

          is related to

          Bug - A problem which impairs or prevents the functions of the product. HIVE-13829 Property "hive.mapjoin.optimized.keys" does not exist

          • Major - Major loss of function.
          • Resolved
          supercedes

          Improvement - An improvement or enhancement to an existing feature or task. HIVE-6924 MapJoinKeyBytes::hashCode() should use Murmur hash

          • Major - Major loss of function.
          • Closed

          Activity

            People

              sershe Sergey Shelukhin
              sershe Sergey Shelukhin
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              Dates

                Created:
                Updated:
                Resolved: