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


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:

> Data integrity flappers in upgrade_tests dtests
> -----------------------------------------------
>                 Key: CASSANDRA-10836
>                 URL:
>             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
> 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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