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From "Jim Witschey (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CASSANDRA-10836) Data integrity flappers in upgrade_tests dtests
Date Fri, 11 Dec 2015 17:09:11 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-10836?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15053034#comment-15053034
] 

Jim Witschey commented on CASSANDRA-10836:
------------------------------------------

I've changed the topic of this ticket slightly. We still don't know the underlying cause of
this kind of error, and some of the flapping upgrade_tests don't involve data resurrection.
E.g., {{whole_set_conditional_test}} recently flapped once, finding a cell empty rather than
finding resurrected data:

http://cassci.datastax.com/job/cassandra-3.0_dtest/429/testReport/junit/upgrade_tests.cql_tests/TestCQLNodes3RF3/whole_set_conditional_test/history/

> Data integrity flappers in upgrade_tests dtests
> -----------------------------------------------
>
>                 Key: CASSANDRA-10836
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-10836
>             Project: Cassandra
>          Issue Type: Bug
>            Reporter: Jim Witschey
>            Priority: Critical
>             Fix For: 3.0.x, 3.x
>
>
> A number of the {{upgrade_tests}} in dtest are flapping with data integrity bugs. For
instance:
> http://cassci.datastax.com/view/cassandra-3.0/job/cassandra-3.0_dtest/422/testReport/upgrade_tests.cql_tests/TestCQLNodes3RF3/conditional_delete_test/history/
> http://cassci.datastax.com/view/cassandra-3.0/job/cassandra-3.0_dtest/421/testReport/upgrade_tests.cql_tests/TestCQLNodes3RF3/cas_and_list_index_test/history/
> This needs further digging to get good debug information; it could well be, e.g., a race
condition in the test. I have not reproduced locally.
> /cc [~philipthompson]



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