Mysql-proxy for read-write separation

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