The mysql-proxy administration interface can be accessed using any MySQL client using the standard protocols. You can use the administration interface to gain information about the proxy server as a whole - standard connections to the proxy are isolated to operate as if you were connected directly to the backend MySQL server. Currently, the interface supports a limited set of functionality designed to provide connection and configuration information.

Because connectivity is provided over the standard MySQL protocol, you must access this information using SQL syntax. By default, the administration port is configured as 4041. You can change this port number using the --admin-address command-line option.

To get a list of the currently active connections to the proxy:

mysql> select * from proxy_connections;
+------+--------+-------+------+
| id   | type   | state | db   |
+------+--------+-------+------+
|    0 | server | 0     |      |
|    1 | proxy  | 0     |      |
|    2 | server | 10    |      |
+------+--------+-------+------+
3 rows in set (0.00 sec)

To get the current configuration:

mysql> select * from proxy_config;
+----------------------------+----------------------+
| option                     | value                |
+----------------------------+----------------------+
| admin.address              | :4041                |
| proxy.address              | :4040                |
| proxy.lua_script           | mc.lua               |
| proxy.backend_addresses[0] | mysql:3306           |
| proxy.fix_bug_25371        | 0                    |
| proxy.profiling            | 1                    |
+----------------------------+----------------------+
6 rows in set (0.01 sec)