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  1. Hive
  2. HIVE-10704

Errors in Tez HashTableLoader when estimated table size is 0

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Details

    • Bug
    • Status: Resolved
    • Major
    • Resolution: Fixed
    • None
    • 1.2.1
    • Query Processor
    • None

    Description

      Couple of issues:

      • If the table sizes in MapJoinOperator.getParentDataSizes() are 0 for all tables, the largest small table selection is wrong and could select the large table (which results in NPE)
      • The memory estimates can either divide-by-zero, or allocate 0 memory if the table size is 0. Try to come up with a sensible default for this.

      Attachments

        1. HIVE-10704.3.patch
          5 kB
          Mostafa Mokhtar
        2. HIVE-10704.2.patch
          5 kB
          Jason Dere
        3. HIVE-10704.1.patch
          3 kB
          Jason Dere

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            jdere Jason Dere Assign to me
            jdere Jason Dere
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              Updated:
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