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Assertion in CETester::getCE when running CE benchmark

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    • Type: Icon: Bug Bug
    • Resolution: Fixed
    • Priority: Icon: Major - P3 Major - P3
    • 6.3.0-rc0
    • Affects Version/s: None
    • Component/s: None
    • Query Optimization
    • Fully Compatible
    • ALL
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      In src/mongo/db/query/ce/benchmark_test.cpp look for the benchmarked called BucketLargeNumber10HistogramsLargeConjunctions.

      Modify it by reducing the number of fields to generate histograms for like so:

         runBenchmarks(
        {_testInfo.testName(),
         1,
         kLargeBucketCounts,
         {{"a", BucketValueType::Int},
          {"b", BucketValueType::Int},
          {"c", BucketValueType::Int},
          {"d", BucketValueType::Int}},
         {
             {"a_1", makeIndexDefinition("a", CollationOp::Ascending, false /*isMultiKey*/)},
             {"b_1", makeIndexDefinition("b", CollationOp::Ascending, false /*isMultiKey*/)},
             {"c_1", makeIndexDefinition("c", CollationOp::Ascending, false /*isMultiKey*/)},
             {"d_1", makeIndexDefinition("d", CollationOp::Ascending, true /*isMultiKey*/)},
             {"e_1", makeIndexDefinition("e", CollationOp::Ascending, false /*isMultiKey*/)},
             {"f_1", makeIndexDefinition("f", CollationOp::Ascending, false /*isMultiKey*/)},
             {"g_1", makeIndexDefinition("g", CollationOp::Ascending, false /*isMultiKey*/)},
             {"h_1", makeIndexDefinition("h", CollationOp::Ascending, false /*isMultiKey*/)},
             {"i_1", makeIndexDefinition("i", CollationOp::Ascending, false /*isMultiKey*/)},
             {"j_1", makeIndexDefinition("j", CollationOp::Ascending, false /*isMultiKey*/)},
         },
         10 /*numPredicates*/},
        "{a: {$gt: 1}, b: {$gt: 10}, c: {$gt: 0}, d: {$elemMatch: {$gt: 10, $lt: 100}}, e: {$lte: "
        "80}, f: {$gte: 500}, g: {$eq: 79}, h: {$lt: 11}, i: {gt: 120}, j: {$eq: 44} }");
}

      Compile and run the benchmark:

      ./build/install/bin/ce_benchmark_test --filter BucketLargeNumber10HistogramsLargeConjunctions
      Show
      In src/mongo/db/query/ce/benchmark_test.cpp look for the benchmarked called BucketLargeNumber10HistogramsLargeConjunctions. Modify it by reducing the number of fields to generate histograms for like so: runBenchmarks( {_testInfo.testName(), 1, kLargeBucketCounts, {{ "a" , BucketValueType::Int}, { "b" , BucketValueType::Int}, { "c" , BucketValueType::Int}, { "d" , BucketValueType::Int}}, { { "a_1" , makeIndexDefinition( "a" , CollationOp::Ascending, false /*isMultiKey*/ )}, { "b_1" , makeIndexDefinition( "b" , CollationOp::Ascending, false /*isMultiKey*/ )}, { "c_1" , makeIndexDefinition( "c" , CollationOp::Ascending, false /*isMultiKey*/ )}, { "d_1" , makeIndexDefinition( "d" , CollationOp::Ascending, true /*isMultiKey*/ )}, { "e_1" , makeIndexDefinition( "e" , CollationOp::Ascending, false /*isMultiKey*/ )}, { "f_1" , makeIndexDefinition( "f" , CollationOp::Ascending, false /*isMultiKey*/ )}, { "g_1" , makeIndexDefinition( "g" , CollationOp::Ascending, false /*isMultiKey*/ )}, { "h_1" , makeIndexDefinition( "h" , CollationOp::Ascending, false /*isMultiKey*/ )}, { "i_1" , makeIndexDefinition( "i" , CollationOp::Ascending, false /*isMultiKey*/ )}, { "j_1" , makeIndexDefinition( "j" , CollationOp::Ascending, false /*isMultiKey*/ )}, }, 10 /*numPredicates*/ }, "{a: {$gt: 1}, b: {$gt: 10}, c: {$gt: 0}, d: {$elemMatch: {$gt: 10, $lt: 100}}, e: {$lte: " "80}, f: {$gte: 500}, g: {$eq: 79}, h: {$lt: 11}, i: {gt: 120}, j: {$eq: 44} }" ); } Compile and run the benchmark: ./build/install/bin/ce_benchmark_test --filter BucketLargeNumber10HistogramsLargeConjunctions
    • QO 2023-01-09, QO 2023-01-23

      Expected std::abs((card) - (memoCE)) <= kMaxCEError (1.32146 <= 0.01) @src/mongo/db/query/ce/test_utils.cpp:132

            Assignee:
            alya.berciu@mongodb.com Alya Berciu
            Reporter:
            anton.korshunov@mongodb.com Anton Korshunov
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              Created:
              Updated:
              Resolved: