Mysql-proxy for read-write separation
Need to configure Master-slave synchronization: Five steps to complete MySQL master-slave replication
主服务器Master:192.168.179.146从服务器Slave:192.168.179.147调度服务器MySQL-Proxy:192.168.179.142
Download Mysql-proxy
The implementation of read-write separation is implemented with LUA scripting, now mysql-proxy inside is integrated, no need to install
Download: https://downloads.mysql.com/archives/proxy/Download the corresponding version
I'm taking CentOS6 64-bit Server for example
Installing Mysql-proxy
My side to facilitate the use of the wget command to download, and then copy to/usr/local/and modify the directory named Mysql-proxy.
wget https://cdn.mysql.com/archives/mysql-proxy/mysql-proxy-0.8.5-linux-el6-x86-64bit.tar.gz tar zxvf mysql-proxy-0.8.5-linux-glibc2.3-x86-32bit.tar.gzmv mysql-proxy-0.8.5-linux-glibc2.3-x86-32bit /usr/local/mysql-proxy
Configure Mysql-proxy
Create the directory where the Mysql-proxy scripts and log files reside, and bring your own management scripts to the test.
cd /usr/local/mysql-proxymkdir lua #创建脚本存放目录mkdir logs #创建日志目录cp share/doc/mysql-proxy/rw-splitting.lua ./lua #复制读写分离配置文件cp share/doc/mysql-proxy/admin-sql.lua ./lua #复制管理脚本
Create mysql-proxy configuration file vim/etc/mysql-proxy.cnf #创建配置文件
[mysql-proxy]user=root #运行mysql-proxy用户admin-username=lin3615 #主从mysql共有的用户admin-password=123456 #用户的密码proxy-address=192.168.179.142:4040 #mysql-proxy运行ip和端口(默认端口4040)proxy-read-only-backend-addresses=192.168.179.147 #指定后端从slave读取数据(默认端口3306)proxy-backend-addresses=192.168.179.146 #指定后端主master写入数据(默认端口3306)proxy-lua-script=/usr/local/mysql-proxy/lua/rw-splitting.lua #指定读写分离配置文件位置admin-lua-script=/usr/local/mysql-proxy/lua/admin-sql.lua #指定管理脚本log-file=/usr/local/mysql-proxy/logs/mysql-proxy.log #日志位置log-level=info #定义log日志级别,由高到低分别有(error|warning|info|message|debug)daemon=true #以守护进程方式运行keepalive=true #mysql-proxy崩溃时,尝试重启
: Wq #保存退出!
chmod 660/etc/mysql-porxy.cnf
To modify a read-write detach configuration file Vim/usr/local/mysql-proxy/lua/rw-splitting.lua
if not proxy.global.config.rwsplit then proxy.global.config.rwsplit = { min_idle_connections = 1, #默认超过4个连接数时,才开始读写分离,改为1 max_idle_connections = 1, #默认8,改为1 is_debug = false }end
Start Mysql-proxy
/usr/local/mysql-proxy/bin/mysql-proxy --defaults-file=/etc/mysql-proxy.cnf #指定我们创建的/etc/mysql-proxy.cnf配置文件启动netstat -tupln | grep 4040 #已经启动killall -9 mysql-proxy #关闭mysql-proxy使用
Test read/write separation
在主服务器创建proxy用户用于mysql-proxy使用,从服务器也会同步这个操作mysql> grant all on *.* to ‘lin3615‘@‘192.168.179.142‘ identified by ‘123456‘;使用客户端连接mysql-proxymysql -u lin3615 -h 192.168.179.142 -P 4040 -p123456
Mysql-proxy for read-write separation