Fang-Yu Rao created IMPALA-9992:
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Summary: test_scanner_position seems flaky in an S3 build
Key: IMPALA-9992
URL: https://issues.apache.org/jira/browse/IMPALA-9992
Project: IMPALA
Issue Type: Bug
Components: Backend, Frontend
Reporter: Fang-Yu Rao
Assignee: Tim Armstrong
[test_scanner_position|https://github.com/apache/impala/blob/master/tests/query_test/test_nested_types.py#L72-L76]
failed in a recent S3 build when executing the following query at
https://github.com/apache/impala/blob/master/testdata/workloads/functional-query/queries/QueryTest/nested-types-scanner-position.test#L646-L666
{code:java}
select pos, item, count(*)
from complextypestbl_medium.int_array
group by 1, 2
{code}
The error message is as follows.
{code:java}
ERROR:test_configuration:Comparing QueryTestResults (expected vs actual):
0,-1,7300 != 0,-1,9856
0,1,7300 != 0,1,9524
0,NULL,7300 != 0,NULL,9700
1,1,7300 != 1,1,9700
1,2,7300 != 1,2,9524
2,2,7300 != 2,2,9700
2,3,7300 != 2,3,9524
3,NULL,7300 != 3,NULL,9700
4,3,7300 != 4,3,9700
5,NULL,7300 != 5,NULL,9700
{code}
Maybe [~tarmstrong], [~bikram], and [~csringhofer] could offer some insight
into the issue since you were working on/reviewing the corresponding patch.
Assign the JIRA to [~tarmstrong] for now but please feel free to assign to
other as you find appropriate. Thanks!
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