What's New in MariaDB MaxScale 2.4?
MariaDB MaxScale 2.4 introduces the following new features:
socketparameter for servers, which allows MaxScale to connect to a server using a Unix socket file.
rankparameter for servers, which allows servers to be explicitly grouped into primary and secondary groups.
Implements connection attempt throttling, which can be configured by setting the max_auth_errors_until_block parameter.