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  1. IMPALA
  2. IMPALA-4718

query_test/test_aggregation fails on remote clusters with > 3 datanodes

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Details

    • Bug
    • Status: Resolved
    • Major
    • Resolution: Won't Fix
    • Impala 2.7.0
    • None
    • Infrastructure

    Description

      I've seen this error twice on 6 node remote clusters (1 master + 5 datanodes) of different platforms:

      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     ?    
      

      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?

      Tim Armstrong, 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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            dknupp David Knupp
            dknupp David Knupp
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