[IMPALA-9830] TestMtDopScanNode.test_mt_dop_scan_node fails BytesRead > 0 assert

• Type: Bug
• Status: Resolved
• Priority: Blocker
• Resolution: Fixed
• Affects Version/s: Impala 4.0.0
• Fix Version/s: Impala 4.0.0
• Component/s: Backend
• Labels: broken-build flaky
• Target Version: Impala 4.0.0
• Epic Color: ghx-label-7
• Assignee: Bikramjeet Vig
• Reporter: Joe McDonnell
• Created: 05/Jun/20 16:25
• Updated: 11/Jun/20 19:15
• Resolved: 11/Jun/20 19:15

Description

A few test runs have seen this failure in TestMtDopScanNode.test_mt_dop_scan_node():

query_test/test_mt_dop.py:134: in test_mt_dop_scan_node
    assert "- BytesRead: 0" not in result.runtime_profile, result.runtime_profile

This test is run in a loop due to IMPALA-9655. We may need to increase the number of loops or rethink the conditions of the test.