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Posted to issues-all@impala.apache.org by "bharath v (JIRA)" <ji...@apache.org> on 2018/12/19 22:26:00 UTC

[jira] [Updated] (IMPALA-8007) test_slow_subscriber is flaky

     [ https://issues.apache.org/jira/browse/IMPALA-8007?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

bharath v updated IMPALA-8007:
------------------------------
    Labels: broken-build  (was: )

> 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
>            Priority: Major
>              Labels: broken-build
>             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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