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From Andres de la Peña (Jira) <j...@apache.org>
Subject [jira] [Commented] (CASSANDRA-16180) 4.0 Quality: Coordination Test Audit
Date Mon, 30 Nov 2020 18:21:00 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-16180?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17240952#comment-17240952
] 

Andres de la Peña commented on CASSANDRA-16180:
-----------------------------------------------

[~maedhroz] I have ported the Python dtests for short read protection to in-JVM ([this commit|https://github.com/apache/cassandra/pull/801/commits/af71097f75ec17cc9dbc98176c8c012196cddefd]). I
have extended them with some extra cases and added parametrization to toggle paging, flush,
coordinator, etc., similarly to what we did for read repair in CASSANDRA-15977. The PR for
dtests marks the ported tests with the new {{@ported_to_in_jvm}} annotation.

While writing these tests I have found what seems to be a bug in group-by queries using paging.
I have created CASSANDRA-16307 to deal with that particular issue, trying to limit the scope
of this ticket. The new tests hitting that bug are just temporarily [ignored|https://github.com/apache/cassandra/blob/af71097f75ec17cc9dbc98176c8c012196cddefd/test/distributed/org/apache/cassandra/distributed/test/ShortReadProtectionTest.java#L334]
in the PR, so we can enable them once we fix the bug.

Next thing is working on the upgrade tests mentioned in the previous comment.

> 4.0 Quality: Coordination Test Audit
> ------------------------------------
>
>                 Key: CASSANDRA-16180
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-16180
>             Project: Cassandra
>          Issue Type: Task
>          Components: Test/unit
>            Reporter: Andres de la Peña
>            Assignee: Andres de la Peña
>            Priority: Normal
>             Fix For: 4.0
>
>          Time Spent: 3h
>  Remaining Estimate: 0h
>
> This is a subtask of CASSANDRA-15579 focusing on coordination.
> I think that the main reference dtest for this is [consistency_test.py|https://github.com/apache/cassandra-dtest/blob/master/consistency_test.py].
We should identify which other tests cover this and identify what should be extended, similarly
to what has been done with CASSANDRA-15977.
> [This document|https://docs.google.com/document/d/1BBeGKla9tIPflZ2awkyfl5Hc_FTs3QYw98LWUnb1fTQ/edit?usp=sharing]
aims to list and describe the existing functional tests for coordination, so we can have a
broad view of what is currently covered. 



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