Files
MaxScale/server/modules/routing/binlogrouter
MassimilianoPinto 75b17151f3 Removed FULL option from SHOW BINARY LOGS
If option ‘binlog_structure’ is set to ‘tree’ then SHOW BINARY LOGS
displays the tree details of the binlog files.

MySQL [(none)]> SHOW BINARY LOGS;
+--------------------------+-----------+
| Log_name                 | File_size |
+--------------------------+-----------+
| 0/10122/mysql-bin.000117 |      1167 |
| 0/10122/mysql-bin.000118 |       652 |
| 0/10124/foo-bin.000016   |      5082 |
| 0/10124/foo-bin.000017   |       491 |
+--------------------------+-----------+

With option set to ‘flat’ (which is the default) the output contains
only
names:

MySQL [(none)]> SHOW BINARY LOGS;
+------------------+-----------+
| Log_name         | File_size |
+------------------+-----------+
| mysql-bin.000110 |       425 |
| mysql-bin.000111 |     10409 |
| mysql-bin.000112 |      9659 |
+------------------+-----------+
2017-08-04 10:08:11 +02:00
..
2017-06-01 10:24:20 +03:00
2017-06-01 10:24:20 +03:00
2017-06-01 10:24:20 +03:00
2017-07-24 12:37:25 +03:00

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.