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Posted to commits@cassandra.apache.org by "C. Scott Andreas (Jira)" <ji...@apache.org> on 2021/03/20 17:31:00 UTC
[jira] [Commented] (CASSANDRA-16262) 4.0 Quality: Coordination &
Replication Fuzz Testing
[ https://issues.apache.org/jira/browse/CASSANDRA-16262?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17305518#comment-17305518 ]
C. Scott Andreas commented on CASSANDRA-16262:
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Thanks [~ifesdjeen].
Do you have a sense of what specific scope we should cover under this ticket, and/or what a definition of done might look like?
> 4.0 Quality: Coordination & Replication Fuzz Testing
> ----------------------------------------------------
>
> Key: CASSANDRA-16262
> URL: https://issues.apache.org/jira/browse/CASSANDRA-16262
> Project: Cassandra
> Issue Type: Task
> Components: Test/fuzz
> Reporter: Caleb Rackliffe
> Assignee: Alex Petrov
> Priority: Normal
> Fix For: 4.0-rc
>
>
> CASSANDRA-16180, CASSANDRA-16181, and CASSANDRA-15977 have largely focused on auditing the existing tests around coordination, replication, and read-repair, respectively. We've expanded existing test cases, added coverage around components that we've refactored along the way, and added in-JVM dtest upgrade tests where possible.
> What remains is verifying the distributed read and write paths in the face of common operational events, namely node restarts, bootstrapping, decommission, and cleanup. If we can find a way to simulate these events, [Harry|https://github.com/apache/cassandra-harry] seems like a good candidate to host the verification logic itself.
> To keep things simple initially, I would propose that we start by testing simple read-only and write-only workloads (the former without read repair).
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