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  1. IMPALA
  2. IMPALA-7234

Non-deterministic majority format for a table with equal partition instances

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Details

    • Bug
    • Status: Resolved
    • Major
    • Resolution: Fixed
    • None
    • Impala 3.1.0
    • None
    • None
    • ghx-label-6

    Description

      The getMajorityFormat method of the FeCatalogUtils currently returns non-deterministic results when its argument is a list of partitions where there is no numerical majority in terms of the number of instances. The result is determined by the order in which the partitions are added to the HashMap. We need more deterministic results which also considers the memory requirement among different types of partitions. Ideally, this function should return the format with higher memory requirements in case of a tie. 

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          is related to

          Test - A new unit, integration or system test. IMPALA-6874 Add more tests for mixed-format tables, including parquet

          • Major - Major loss of function.
          • Resolved

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              poojanilangekar Pooja Nilangekar
              poojanilangekar Pooja Nilangekar
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                Created:
                Updated:
                Resolved: