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https://issues.apache.org/jira/browse/CASSANDRA-16385?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17264583#comment-17264583
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Jon Meredith commented on CASSANDRA-16385:
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[Branch|http://https://github.com/jonmeredith/cassandra/tree/C16385]
[PR|https://github.com/apache/cassandra/pull/868]
[CircleCI|https://app.circleci.com/pipelines/github/jonmeredith/cassandra?branch=C16385]
> Correctly serialize all request responses - CASSANDRA-15946 followup
> --------------------------------------------------------------------
>
> Key: CASSANDRA-16385
> URL: https://issues.apache.org/jira/browse/CASSANDRA-16385
> Project: Cassandra
> Issue Type: Improvement
> Components: Test/dtest/java
> Reporter: Jon Meredith
> Assignee: Jon Meredith
> Priority: Normal
> Fix For: 4.0-beta
>
> Time Spent: 10m
> Remaining Estimate: 0h
>
> When receiving a message, a 4.0 dtest instance reserializes messages to pass
> them through the dtest message filtering.
>
> The 4.0 internode messaging refactor does not expect to have to re-serialize
> response
> messages, so the workaround in CASSANDRA-15946 was just to register the
> ReadResponse serializer for all REQUEST_RESPONSE messages, however request
> response is used for other responses too.
> I'm attaching a patch that demonstrates the issue by adding a simple Paxos
> upgrade test to generate a PrepareResponse message that crashes the
> ReadResponse serializer, then reverts CASSANDRA-15946 and re-users the
> messaging service serialization method that checks the request callback if a
> serializer is not defined.
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