The binlogfilter needs to read results one packet at a time but it needs
resultsets to be collected into a single buffer. This behavior is
guaranteed implicitly when the binlogrouter is used but is not present
when it is used without it. To support the use of the binlogfilter with
readconnroute, the filter must properly declare the capabilities.
causal_reads does not work with servers that update their state via
mechanisms other than the standard replication. In practice this is just
another Galera limitation.
In cases where servers are known to be down on startup, this feature does
more harm than good. Disabling it in these cases would be preferable but
due to how the parameter is used, it is not possible.
The SQL for the second recursive CTE table can be optimized by adding a
where condition on the recursive part that rules out users that are not
roles. The functionality remains the same as only roles can be granted to
users.
Checking presence of 'apt', 'yum' or 'zypper' command is not very
reliable way to determine package manager type.
E.g. OpenSUSE 25 has 'apt' which is wrapper over 'zypper' or rpm tools
can be installed on Ubuntu.
More relible way is to check /etc/*-release file and if it is not
availabe try to check presence of apt, yum or zypper
Added new ssl_version value for TLSv1.3. This allows the list of accepted
protocol versions to be limited to all supported protocols. Previously
TLSv1.3 was only available with ssl_version=MAX.
Also fixed the enum value serialization to use a lowercase v. This causes
them to have the same value as the one used in the enum.
Previously when ssl_version was used with a value that is not supported on
the system, an unknown parameter error was returned. This could be
confusing and logging a proper error message should make it clear.
MDBCI can put spaces around values in the *_network_config file which
can cause ssh connection failures in the tests. To fix it removing all
spaces from all values which were read from *_network_config
1) Only two backends are set up for extra-port
2) The setting is checked to work by connecting directly to servers
3) The server connections are saturated before starting MaxScale
4) MaxScale logs are checked for extra-port-related messages
