The binlog router is not a "normal" MaxScale router, it is not
designed to be used to route client requests to a database in the
usual proxy fashion. Rather it is designed to allow MaxScale to be
used as a relay server in a MySQL replication environment.
In this environment MaxScale sits between a master MySQL server and
a set of slave servers. The slaves servers execute a change master
to the MaxScale server, otehrwise they are configured in exactly
the same way as a normal MySQL slave server.
The master server configuration is unaltered, it simply sees a
single slave server.
MaxScale is configured as usual, with a service definition that
references the binlog router. The major configuration option to
consider is the router_options paramter, in the binlog router this
provides the binlog specific configuration parameters.
uuid=
This is the UUID that MaxScale uses when it connects
to the real master. It will report the master's
UUID to slaves that connect to it.
server-id=
The server-id that MaxScale uses when it connects
to the real master server. Again it will reports
the master's server-id to the slaves that connect
to it.
user=
The user that MaxScale uses to login to the real
master
password=
The password that MaxScale uses to login to the
real master
master-id=
The server-id of the real master. MaxScale should
get this by sending a query, but at the moment it
is in the configuration file for ease of implementation
An example binlog service configuration is shown below:
[Binlog Service]
type=service
router=binlogrouter
servers=master
router_options=uuid=f12fcb7f-b97b-11e3-bc5e-0401152c4c22,server-id=3,user=repl,password=slavepass,master-id=1
user=maxscale
passwd=Mhu87p2D
The servers list for a binlog router service should contain just
the master server. In future a list will be given and the monitor
used to determine which server is the current master server.
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