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https://issues.apache.org/jira/browse/IMPALA-4718?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Tim Armstrong resolved IMPALA-4718.
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Resolution: Won't Fix
> query_test/test_aggregation fails on remote clusters with > 3 datanodes
> -----------------------------------------------------------------------
>
> Key: IMPALA-4718
> URL: https://issues.apache.org/jira/browse/IMPALA-4718
> Project: IMPALA
> Issue Type: Bug
> Components: Infrastructure
> Affects Versions: Impala 2.7.0
> Reporter: David Knupp
> Assignee: David Knupp
> Priority: Major
> Labels: correctness, test-infra
>
> I've seen this error twice on 6 node remote clusters (1 master + 5 datanodes)
> of different platforms:
> {noformat}
> query_test/test_aggregation.py:134: in test_aggregation
> self.verify_agg_result(agg_func, data_type, False, result.data[0]);
> query_test/test_aggregation.py:167: in verify_agg_result
> assert result_lut[key][:-ignore_digits] == actual_string[:-ignore_digits]
> E assert '2010-01-05 20:47:11.70508' == '2010-01-05 20:47:11.70510'
> E - 2010-01-05 20:47:11.70508
> E ? -
> E + 2010-01-05 20:47:11.70510
> E ?
> {noformat}
> Is it really a product failure though? It seems like we might be asserting an
> unreasonable degree of precision -- perhaps we just need to tweak our test
> verification expectations?
> [~tarmstrong], I'm randomly assigning to you because you were the last one to
> touch verify_agg_result, where the assertion is defined. Please reassign as
> you see fit.
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