root@bogon ~]# yum -y install gcc* gcc-c++* autoconf* automake* zlib* libxml* ncurses-devel* libmcrypt* libtool* flex* pkgconfig*  

libevent* glib* readline-devel  

[root@bogon ~]# mkdir /opt/install/  

[root@bogon ~]# cd /opt/install/  

[root@bogon install]# wget http://www.lua.org/ftp/lua-5.1.4.tar.gz  

[root@bogon install]# tar zxvf lua-5.2.3.tar.gz  

[root@bogon install]# cd lua-5.2.3  

[root@bogon install]# make linux  

此时如果出现

lua.c:67:31: fatal error: readline/readline.h: No such file or directory

说明缺少libreadline-dev依赖包

[plain] view plain copy print?在CODE上查看代码片派生到我的代码片

[root@bogon install]# make install  

[root@bogon install]# export LUA_CFLAGS="-I/usr/local/include" LUA_LIBS="-L/usr/local/lib -llua -ldl" LDFLAGS="-lm"  

这行代码我也不知道啥作用，好像是的指定环境变量。

下面开始安装mysql-proxy

安装之前先看一下自己机器是否是64位系统

查看centos内核的版本

[plain] view plain copy print?在CODE上查看代码片派生到我的代码片

[root@bogon install]# cat /etc/issue  

查看linux版本

[plain] view plain copy print?在CODE上查看代码片派生到我的代码片

[root@bogon install]# cat /proc/version  

[root@bogon install]# lsb_release -a

载地址：http://mysql.cdpa.nsysu.edu.tw/Downloads/MySQL-Proxy/

[plain] view plain copy print?在CODE上查看代码片派生到我的代码片

[root@bogon install]# cd /opt/install  

[root@bogon install]# wget http://mysql.cdpa.nsysu.edu.tw/Downloads/MySQL-Proxy/mysql-proxy-0.8.4-linux-rhel5-x86-32bit.tar.gz  

[root@bogon install]# tar zxvf  mysql-proxy-0.8.4-linux-rhel5-x86-32bit.tar.gz  

[root@bogon install]# mkdir /opt/mysql-proxy/  

[root@bogon install]# cp /opt/install/mysql-proxy-0.8.4-linux-rhel5-x86-32bit/* /opt/mysql-proxy/  

[root@bogon install]# cd /opt/mysql-proxy/  

[root@bogon install]# export PATH=$PATH:/opt/mysql-proxy/bin/

mysql-proxy.conf配置

[mysql-proxy]

#[aemon = tru]

#keepalive = true

pid-file = /var/run/mysql-proxy.pid

#log-file = /var/log/mysql-proxy.log

#log-level = debug

#max-open-files = 1024

plugins = admin,proxy

#user = mysql-proxy

#

#Proxy Configuration

#proxy-address = 0.0.0.0:3307

proxy-backend-addresses = 192.168.1.144:3306 读写权限mysql

proxy-read-only-backend-addresses = 192.168.1.106:3306 只读mysql

proxy-lua-script =/usr/local/mysql-proxy/share/doc/mysql-proxy/rw-splitting.lua

proxy-skip-profiling = true

#

# Admin Configuration

admin-address = 192.168.1.144:4041 这个是mysql-proxy的管理端口和ip

admin-lua-script = /usr/local/mysql-proxy/share/doc/mysql-proxy/admin.lua

admin-username = porxy1 这个是mysql-proxy的用户密码

admin-password = 123456

启动/usr/local/mysql-proxy/bin/mysql-proxy  --defaults-file=/usr/local/mysql-proxy/mysql-proxy.conf 

2016-08-19 17:23:18: (critical) plugin admin 0.8.3 started

2016-08-19 17:23:18: (critical) plugin proxy 0.8.3 started

后会看到这两的lua脚本被启动

测试/usr/local/mysql/bin/mysql -uporxy1 -p123456  -P4041 -h192.168.1.144 这是登入mysql-proxy的管理端口用的proxy的用户密码

在这个下面无法实现mysql的命令

SELECT * FROM backends 用这个命令查看mysql的连接情况

 backend_ndx | address            | state | type | uuid | connected_clients |

+-------------+--------------------+-------+------+------+-------------------+

|           1 | 192.168.1.144:3306 | up    | rw   | NULL |                 0 |

|           2 | 192.168.1.106:3306 | up    | ro   | NULL |                 0

/usr/local/mysql/bin/mysql -uproxy1 -p123456 -h192.168.1.144 -P4040 是用户端口这个用户密码必须是mysql的用户

mysql读写分离