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https://issues.apache.org/jira/browse/CASSANDRA-16374?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Sam Tunnicliffe reassigned CASSANDRA-16374:
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Assignee: Sam Tunnicliffe
> Restore check for consistent native protocol versions for connection
> --------------------------------------------------------------------
>
> Key: CASSANDRA-16374
> URL: https://issues.apache.org/jira/browse/CASSANDRA-16374
> Project: Cassandra
> Issue Type: Bug
> Components: Messaging/Client
> Reporter: Sam Tunnicliffe
> Assignee: Sam Tunnicliffe
> Priority: Normal
> Fix For: 4.0-beta
>
>
> In protocol v4 and earlier, the frame header is checked during
> deserialization to ensure that the version matches the one negotiated for the
> connection.
> The original intention was to remove this version id from the frame (renamed
> to envelope in v5) header. However, there is value in keeping this check as
> well as the the one for the beta flag, so it remains in the frame/envelope
> format. The validation itself however, was removed by some refactoring as
> part of CASSANDRA-15299 and should be added back for all protocol versions
> before finalizing v5 and cutting a release candidate. The text detailing its
> removal also remains in the proposed spec update attached to CASSANDRA-14688,
> which also needs to be updated.
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