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  1. Kudu
  2. KUDU-3140

Add heuristics to disable predicate evaluation/filtering for Bloom filter predicate

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Details

    • Improvement
    • Status: Resolved
    • Major
    • Resolution: Fixed
    • 1.12.0
    • 1.13.0
    • perf, util
    • None

    Description

      KUDU-2483 introduced support for Bloom filter predicate.
      However as observed with TPCH, query 9 exhibits regression when Bloom filter predicates are pushed down to kudu.

      See excerpt from performance analysis of TPCH run by wzhou.
      https://gist.github.com/bbhavsar/811ccbe0cd144090f82bdabcd801f827

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        Issue Links

          Dependent

          Improvement - An improvement or enhancement to an existing feature or task. IMPALA-9789 Disable ineffective bloom filters for Kudu scan

          • Major - Major loss of function.
          • Resolved
          is related to

          New Feature - A new feature of the product, which has yet to be developed. KUDU-2483 Scan tablets with bloom filter

          • Major - Major loss of function.
          • Resolved

          Activity

            People

              bankim Bankim Bhavsar
              bankim Bankim Bhavsar
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              Dates

                Created:
                Updated:
                Resolved: