The server commands are used to get information about servers and set their properties, namely status, mode and weight.
server set_weight: Set a server's weight, which
determines its likelihood of being chosen to process requests
or replace a failed master. The value must be greater than
0.0 and lower or equal to
server lookup_uuid: Return a server's UUID value.
server set_mode: Set a server's mode, which
determines whether it can process read_only, read_write, or
both transaction types. It can also be set to offline meaning
that the server will not process any kind of user's request.
server set_status: Set a server's status, which
determines whether it is primary, secondary, spare, or faulty.