[IMPALA-5761] Flaky test: TestRowsAvailability::test_rows_availability

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Duplicate
• Affects Version/s: Impala 2.10.0
• Fix Version/s: Product Backlog
• Component/s: Infrastructure
• Labels: flaky
• Epic Color: ghx-label-8
• Assignee: Matthew Jacobs
• Reporter: Taras Bobrovytsky
• Created: 03/Aug/17 17:40
• Updated: 23/Aug/17 21:24
• Resolved: 23/Aug/17 21:24

Description

There was a random failure in one of our builds of the TestRowsAvailability test.

Here's what the error looks like:

 TestRowsAvailability.test_rows_availability[query: select * from functional.alltypestiny where month = 1 and bool_col = sleep(1000) | exec_option: {'batch_size': 0, 'num_nodes': 0, 'disable_codegen_rows_threshold': 0, 'disable_codegen': False, 'abort_on_error': 1, 'exec_single_node_rows_threshold': 0} | table_format: text/none] 
query_test/test_rows_availability.py:84: in test_rows_availability
    assert rows_avail_ms >= self.ROWS_AVAIL_LOWER_BOUND_MS,\
E   AssertionError: The 'Rows available' timeline event was marked prematurely 1844ms after the previous timeline event.
E     Expected the event to be marked no earlier than 2000ms after the previous event.
E     Query: select * from functional.alltypestiny where month = 1 and bool_col = sleep(1000)
E   assert 1844 >= 2000
E    +  where 2000 = <test_rows_availability.TestRowsAvailability object at 0x7fafcb526c10>.ROWS_AVAIL_LOWER_BOUND_MS

Issue Links

• duplicates: IMPALA-4987 test_rows_availability.py is flaky