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https://issues.apache.org/jira/browse/CASSANDRA-12097?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15375542#comment-15375542
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Carl Yeksigian commented on CASSANDRA-12097:
--------------------------------------------
Based on where this error comes from, I think this is an issue with this test
(and most likely our other materialized view tests) where we don't account for
the fact that we are writing asynchronously to the other nodes and could get a
wrong value back because of it.
We should be waiting for the write threadpools to drain and hints to playback
before trying to verify.
> dtest failure in
> materialized_views_test.TestMaterializedViews.view_tombstone_test
> ----------------------------------------------------------------------------------
>
> Key: CASSANDRA-12097
> URL: https://issues.apache.org/jira/browse/CASSANDRA-12097
> Project: Cassandra
> Issue Type: Bug
> Reporter: Sean McCarthy
> Assignee: Carl Yeksigian
> Labels: dtest
> Fix For: 3.x
>
> Attachments: node1.log, node1_debug.log, node1_gc.log, node2.log,
> node2_debug.log, node2_gc.log, node3.log, node3_debug.log, node3_gc.log
>
>
> example failure:
> http://cassci.datastax.com/job/trunk_offheap_dtest/271/testReport/materialized_views_test/TestMaterializedViews/view_tombstone_test
> Failed on CassCI build trunk_offheap_dtest #271
> {code}
> Stacktrace
> File "/usr/lib/python2.7/unittest/case.py", line 329, in run
> testMethod()
> File "/home/automaton/cassandra-dtest/materialized_views_test.py", line
> 754, in view_tombstone_test
> [1, 1, 'b', 3.0]
> File "/home/automaton/cassandra-dtest/assertions.py", line 51, in assert_one
> assert list_res == [expected], "Expected %s from %s, but got %s" %
> ([expected], query, list_res)
> "Expected [[1, 1, 'b', 3.0]] from SELECT * FROM t_by_v WHERE v = 1, but got
> [[1, 1, u'b', None]]
> {code}
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