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https://issues.apache.org/jira/browse/CASSANDRA-17605?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17534697#comment-17534697
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Berenguer Blasi commented on CASSANDRA-17605:
---------------------------------------------

[~adelapena] thanks for your feedback. In fact it trigerred me to push what I 
believe is an overall better solution: If TTL expires fail the test asking the 
user to bump TTL again. That way it's deterministic and crystal clear what the 
problem and the solution are. Wdyt?

I didn't test all branches as the behavior of the test didn't change. Let's see 
how CI goes [this 
time|https://app.circleci.com/pipelines/github/bereng/cassandra/655/workflows/badbea6a-00e2-40ed-aacf-89b491229d0a/jobs/5952]

> Fix 
> dtest-offheap.materialized_views_test.TestMaterializedViews.test_mv_with_default_ttl_with_flush
> ---------------------------------------------------------------------------------------------------
>
>                 Key: CASSANDRA-17605
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-17605
>             Project: Cassandra
>          Issue Type: Bug
>          Components: CI
>            Reporter: Ekaterina Dimitrova
>            Assignee: Berenguer Blasi
>            Priority: Urgent
>             Fix For: 4.1.x
>
>
> h3.  
> https://ci-cassandra.apache.org/job/Cassandra-4.1/5/testReport/dtest-offheap.materialized_views_test/TestMaterializedViews/test_mv_with_default_ttl_with_flush_2/
> {code:java}
> Error Message
> AssertionError: Expected [[1, 6, 1]] from SELECT * FROM t, but got [[1, None, 
> 1]]
> Stacktrace
> self = <materialized_views_test.TestMaterializedViews object at 
> 0x7f8b1fd21cd0> @since('3.0') def test_mv_with_default_ttl_with_flush(self): 
> > self._test_mv_with_default_ttl(True) materialized_views_test.py:1320: _ _ _ 
> _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 
> materialized_views_test.py:1416: in _test_mv_with_default_ttl 
> assert_one(session, "SELECT * FROM t", [1, 6, 1]) _ _ _ _ _ _ _ _ _ _ _ _ _ _ 
> _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ session = 
> <cassandra.cluster.Session object at 0x7f8b1f167f70> query = 'SELECT * FROM 
> t', expected = [1, 6, 1], cl = None def assert_one(session, query, expected, 
> cl=None): """ Assert query returns one row. @param session Session to use 
> @param query Query to run @param expected Expected results from query @param 
> cl Optional Consistency Level setting. Default ONE Examples: 
> assert_one(session, "LIST USERS", ['cassandra', True]) assert_one(session, 
> query, [0, 0]) """ simple_query = SimpleStatement(query, 
> consistency_level=cl) res = session.execute(simple_query) list_res = 
> _rows_to_list(res) > assert list_res == [expected], "Expected {} from {}, but 
> got {}".format([expected], query, list_res) E AssertionError: Expected [[1, 
> 6, 1]] from SELECT * FROM t, but got [[1, None, 1]] tools/assertions.py:132: 
> AssertionError
> {code}
>  



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