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https://issues.apache.org/jira/browse/IMPALA-9560?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Joe McDonnell updated IMPALA-9560:
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Fix Version/s: Impala 3.4.0
> Changing version from 3.4.0-SNAPSHOT to 3.4.0-RELEASE breaks
> TestStatsExtrapolation
> -----------------------------------------------------------------------------------
>
> Key: IMPALA-9560
> URL: https://issues.apache.org/jira/browse/IMPALA-9560
> Project: IMPALA
> Issue Type: Bug
> Components: Frontend
> Affects Versions: Impala 3.4.0
> Reporter: Joe McDonnell
> Assignee: Joe McDonnell
> Priority: Critical
> Labels: broken-build
> Fix For: Impala 4.0, Impala 3.4.0
>
>
> When working on the Impala 3.4 release, we changed the version on
> branch-3.4.0 from 3.4.0-SNAPSHOT to 3.4.0-RELEASE.
> metadata/test_stats_extrapolation.py::TestStatsExtrapolation::test_stats_extrapolation()
> now fails with the following error:
> {noformat}
> metadata/test_stats_extrapolation.py:44: in test_stats_extrapolation
> self.run_test_case('QueryTest/stats-extrapolation', vector,
> unique_database)
> common/impala_test_suite.py:690: in run_test_case
> self.__verify_results_and_errors(vector, test_section, result, use_db)
> common/impala_test_suite.py:523: in __verify_results_and_errors
> replace_filenames_with_placeholder)
> common/test_result_verifier.py:456: in verify_raw_results
> VERIFIER_MAP[verifier](expected, actual)
> common/test_result_verifier.py:246: in verify_query_result_is_subset
> assert expected_literal_strings <= actual_literal_strings
> E assert Items in expected results not found in actual results:
> E ' tuple-ids=0 row-size=4B cardinality=17.91K'
> E Items in actual results:
> E '| output exprs: id'
> E ''
> E ' table: rows=unavailable size=unavailable'
> E ' stored statistics:'
> E 'Max Per-Host Resource Reservation: Memory=8.00KB Threads=2'
> E ' columns: unavailable'
> E ' partitions: 0/24 rows=unavailable'
> E '00:SCAN HDFS [test_stats_extrapolation_5c6bdfd.alltypes]'
> E ' tuple-ids=0 row-size=4B cardinality=17.90K'
> E '|'
> E 'Analyzed query: SELECT id FROM
> test_stats_extrapolation_5c6bdfd.alltypes'
> E 'F00:PLAN FRAGMENT [UNPARTITIONED] hosts=1 instances=1'
> E ' HDFS partitions=24/24 files=36 size=281.43KB'
> E 'test_stats_extrapolation_5c6bdfd.alltypes'
> E 'PLAN-ROOT SINK'
> E '| mem-estimate=0B mem-reservation=0B thread-reservation=0'
> E '| Per-Host Resources: mem-estimate=16.00MB mem-reservation=8.00KB
> thread-reservation=2'
> E ' in pipelines: 00(GETNEXT)'
> E ' extrapolated-rows=unavailable max-scan-range-rows=unavailable'
> E 'Per-Host Resource Estimates: Memory=16MB'
> E 'WARNING: The following tables are missing relevant table and/or column
> statistics.'
> E ' mem-estimate=16.00MB mem-reservation=8.00KB
> thread-reservation=1'{noformat}
> The output is expecting a cardinality of 17.91K, but instead the cardinality
> is 17.90K.
> The RELEASE version has one character fewer than the SNAPSHOT version. The
> version gets embedded in parquet files, so the parquet file is slightly
> smaller than before. The test is estimating cardinality by looking at the
> size of the parquet file. Apparently, this is right on the edge.
> This test should tolerate this difference.
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