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Debugging
Posted by: Adrian Boughey
Date: October 01, 2007 05:38AM

I'm starting mysql-proxy as follows and it seems to work okay.

LUA_PATH="/usr/local/share/mysql-proxy/?.lua" /usr/local/sbin/mysql-proxy --proxy-address=xxx.xxx.xxx.xxx:3307 --proxy-backend-addresses=xxx.xxx.xxx.xxx:3306 --proxy-read-only-backend-addresses=xxx.xxx.xxx.xxx:3306 --pid-file=/var/run/mysql-proxy.pid --proxy-lua-script=/usr/local/share/mysql-proxy/rw-splitting.lua

However, how can I find out which query is being sent where, i.e. to check whether write queries are going to the master and read-only queries are going to the slave(s)?

The reason I ask is that no traffic appears to be going to the slaves. If I do a select * from proxy_config; I get the following:

+----------------------------+-----------------------------------------------+
| option | value |
+----------------------------+-----------------------------------------------+
| admin.address | :4041 |
| proxy.address | xxx.xxx.xxx.xxx:3307 |
| proxy.lua_script | /usr/local/share/mysql-proxy/rw-splitting.lua |
| proxy.backend_addresses[0] | xxx.xxx.xxx.xxx:3306 |
| proxy.fix_bug_25371 | 0 |
| proxy.profiling | 1 |
+----------------------------+-----------------------------------------------+
6 rows in set (0.00 sec)

Should my read-only servers be listed here too?



Edited 2 time(s). Last edit at 10/11/2008 12:16AM by Adrian Boughey.

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