bharath v created IMPALA-8007:
---------------------------------

             Summary: test_slow_subscriber is flaky
                 Key: IMPALA-8007
                 URL: https://issues.apache.org/jira/browse/IMPALA-8007
             Project: IMPALA
          Issue Type: Bug
          Components: Backend
    Affects Versions: Impala 3.2.0
            Reporter: bharath v
            Assignee: Pooja Nilangekar
             Fix For: Impala 3.2.0


We have hit both the asserts in the test.

*Exhaustive:*
{noformat}
statestore/test_statestore.py:574: in test_slow_subscriber     assert 
(secs_since_heartbeat < float(sleep_time + 1.0)) E   assert 8.8040000000000003 
< 6.0 E    +  where 6.0 = float((5 + 1.0))
Stacktrace
statestore/test_statestore.py:574: in test_slow_subscriber
    assert (secs_since_heartbeat < float(sleep_time + 1.0))
E   assert 8.8040000000000003 < 6.0
E    +  where 6.0 = float((5 + 1.0))
{noformat}

*ASAN*

{noformat}
Error Message
statestore/test_statestore.py:573: in t     assert (secs_since_heartbeat > 
float(sleep_time - 1.0)) E   assert 4.995 > 5.0 E    +  where 5.0 = float((6 - 
1.0))
Stacktrace
statestore/test_statestore.py:573: in test_slow_subscriber
    assert (secs_since_heartbeat > float(sleep_time - 1.0))
E   assert 4.995 > 5.0
E    +  where 5.0 = float((6 - 1.0))
{noformat}

I only noticed this happen twice (the above two instances) since the patch is 
committed. So, looks like a racy bug.




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