MySQL Proxy主从读写分离

一、安装MySQL，主机：192.168.1.222/223/224 # wget http://dev.mysql.com/get/Downloads/MySQL-5.5/mysql-5.5.9.tar.gz/from/http://mirror.services.wisc.edu/mysql/# tar zxf mysql-5.5.9.tar.gz# cd mysql-5.5.9# useradd mysql# wget http://www.cmake

一、安装MySQL，主机：192.168.1.222/223/224

# wget http://dev.mysql.com/get/Downloads/MySQL-5.5/mysql-5.5.9.tar.gz/from/http://mirror.services.wisc.edu/mysql/# tar zxf mysql-5.5.9.tar.gz# cd mysql-5.5.9# useradd mysql# wget http://www.cmake.org/files/v2.8/cmake-2.8.4.tar.gz# tar xzf cmake-2.8.4.tar.gz# cd cmake-2.8.4# ./configure && make && make install# cmake . \-DCMAKE_INSTALL_PREFIX=/opt/module/mysql/ \-DMYSQL_DATADIR=/opt/data/mysql/ \-DMYSQL_UNIX_ADDR=/opt/data/mysql/mysql.sock \-DWITH_INNOBASE_STORAGE_ENGINE=1 \-DENABLED_LOCAL_INFILE=1 \-DMYSQL_TCP_PORT=3306 \-DEXTRA_CHARSETS=gb2312,gbk,big5,utf8,ascii,latin1 \-DDEFAULT_CHARSET=utf8 \-DDEFAULT_COLLATION=utf8_general_ci \-DMYSQL_USER=mysql \-DWITH_DEBUG=0# make && make install# cp support-files/my-medium.cnf /etc/my.cnf# cp support-files/mysql.server /etc/init.d/mysqld# chmod 755 /etc/init.d/mysqld# chkconfig --add mysqld# chkconfig mysqld on# chown mysql:mysql /etc/my.cnf# chown -R mysql:mysql /opt/module/mysql/ /opt/data/mysql/# vi /etc/my.cnf==========[mysqld]datadir = /opt/data/mysql==========# su – mysql$ cd /opt/module/mysql$ cp scripts/mysql_install_db .$ ./mysql_install_db –user=mysql# service mysqld start

二、安装Lua

# wget http://www.lua.org/ftp/lua-5.1.4.tar.gz# tar xzf lua-5.1.4.tar.gz# cd lua-5.1.4# make# make linux INSTALL_TOP= /usr/local/lua# make install

三、安装MySQL Proxy，主机：192.168.1.224(注：将MySQL Proxy安装在单独的机器上更好)
a) glib

# wget http://ftp.gnome.org/pub/gnome/sources/glib/2.28/glib-2.28.4.tar.bz2# tar jxf glib-2.28.4.tar.bz2# cd glib-2.28.4# ./configure --prefix=/opt/module/glib2# make && make install# echo "/opt/module/glib2/lib" >> /etc/ld.so.conf# ldconfig

b) pkg-config

# wget http://pkg-config.freedesktop.org/releases/pkgconfig-0.18.tar.gz# tar xzf pkgconfig-0.18.tar.gz# cd pkgconfig-0.18# ./configure && make && make install

c) libevent

# wget http://monkey.org/%7Eprovos/libevent-2.0.10-stable.tar.gz# tar zxf libevent-2.0.10-stable.tar.gz# cd libevent-2.0.10-stable# ./configure --prefix=/opt/module/libevent# make; make install

d) mysql-proxy

# wget http://dev.mysql.com/get/Downloads/MySQL-Proxy/mysql-proxy-0.8.1.tar.gz/from/http://mysql.he.net/# tar xzf mysql-proxy-0.8.1.tar.gz# cd mysql-proxy-0.8.1# export LUA_CFLAGS="-I/usr/local/include" LUA_LIBS="-L/usr/local/lib -llua -ldl" LDFLAGS="-lm"export PKG_CONFIG_PATH="/usr/lib/pkgconfig/"export GLIB_CFLAGS="-I/opt/module/glib2/include/glib-2.0 -I/opt/module/glib2/lib/glib-2.0/include" GLIB_LIBS="-L/opt/module/glib2/lib -lglib-2.0"export GMODULE_CFLAGS="-I/opt/module/glib2/include" GMODULE_LIBS="-L/opt/module/glib2/lib"export GTHREAD_CFLAGS="-I/opt/module/glib2/include"export GTHREAD_LIBS="-L/opt/module/glib2/lib"export CPPFLAGS="$CPPFLAGS -I/opt/module/libevent/include"export CFLAGS="$CFLAGS -I/opt/module/libevent/include"export LDFLAGS="$LDFLAGS -L/opt/module/libevent/lib -lm"export LIBS="/opt/module/glib2/lib/libgthread-2.0.so /opt/module/glib2/lib/libgmodule-2.0.so"# ./configure --with-mysql="/opt/module/mysql" --prefix="/opt/module/mysql-proxy"查看是否安装成功：# /opt/module/mysql-proxy/bin/mysql-proxy --help-all | less配置：# vi /etc/mysql-proxy.cnf===================[mysql-proxy]admin-username = mysqlproxyadm 主从数据库都需要的数据库用户admin-password = 123456daemon = truekeepalive = truelog-file = /opt/module/mysql-proxy/loglog-level = debugproxy-address = 192.168.1.224:4040proxy-backend-addresses = 192.168.1.223:3306 主proxy-read-only-backend-addresses = 192.168.1.222:3306,192.168.1.224:3306 从proxy-lua-script =  /opt/module/mysql-proxy/lib/mysql-proxy/lua/rw-splitting.luaadmin-lua-script  = /opt/module/mysql-proxy/lib/mysql-proxy/lua/admin.lua===================# chmod 0660 /etc/mysql-proxy.cnf制作启动脚本：# vi /etc/init.d/mysql-proxy===================#!/bin/shexport LUA_PATH="/opt/module/mysql-proxy/lib/mysql-proxy/lua/?.lua"mode=$1;if [ -z $mode ] ; then	mode="start"ficase $mode in	start)		/opt/module/mysql-proxy/bin/mysql-proxy --defaults-file=/etc/mysql-proxy.cnf>/opt/module/mysql-proxy/log &		;;	stop)		killall -9 mysql-proxy		;;	*)		echo "Usage: $0 (start|stop)"		exit 1		;;esacexit 0;=====================# chmod +x /etc/init.d/mysql-proxy#cp x/mysql-proxy-0.8.1/lib/rw-splitting.lua /opt/module/mysql-proxy/lib/mysql-proxy/lua/rw-splitting.lua修改rw-splitting.lua# vi /opt/module/mysql-proxy/lib/mysql-proxy/lua/rw-splitting.lua===========min_idle_connections = 1,max_idle_connections = 2===========启动mysql-proxy# /etc/init.d/mysql-proxy start

四、配置主从数据库(master库A在192.168.1.223上，slave库B在192.168.1.222上，slave库C在192.168.1.224)
1、登录master，增加slave用的用户

        GRANT REPLICATION SLAVE ON *.* TO 'slave_a'@'192.168.1.222' IDENTIFIED BY '123456'	GRANT REPLICATION SLAVE ON *.* TO 'slave_b'@'192.168.1.224' IDENTIFIED BY '123456'	注：开放master的端口，允许slave远程连接	# vi /etc/sysconfig/iptables	============================	在icmp-host-prohibited前增加：-A RH-Firewall-1-INPUT -p tcp -m state --state NEW -m tcp --dport 3306 -j ACCEPT	============================	# service iptables restart	

2、修改MySQL配置文件
a)master

        # vi /etc/my.cnf	=============	[mysqld]	server-id = 1	log_bin = mysql-bin	read-only = 0	binlog-do-db = test # 多个写多行	binlog-ignore-db = mysql #多个写多行	binlog-ignore-db = information_schema        =============        

b)slave，配置每个slave

        # vi /etc/my.cnf	[mysqld]	server-id = 2	log_bin = mysql-bin	read-only = 1	replicate-do-db = test	replicate-ignore-db = mysql	replicate-ignore-db = information_schema	=============        

3、启动slave后执行(各台slave操作类似)：

	CHANGE MASTER TO MASTER_HOST = '192.168.1.223', MASTER_USER = 'slave_a', MASTER_PASSWORD = '123456', MASTER_LOG_FILE = 'mysql-bin.000001', MASTER_LOG_POS = 107; 通过在master上SHOW MASTER STATUS 来得到MASTER_LOG_FILE和MASTER_LOG_POS的值	SLAVE START;	SHOW SLAVE STATUS \G; 查看是否同步上       

4、登录master，增删改数据后看下各slave是否正常同步到
五、测试
1、简单测试
在主从库上都建立账号mysqlproxyadm

# GRANT SELECT ON *.* TO 'mysqlproxyadm'@'192.168.1.224' IDENTIFIED BY '123456'# GRANT SELECT,INSERT,UPDATE,DELETE,CREATE,DROP,ALTER ON *.* TO 'mysqlproxyad<div style="color:transparent">本文来源gaodai.ma#com搞#代!码(网</div>m'@'192.168.1.224' IDENTIFIED BY '123456'# GRANT SELECT ON *.* TO 'mysqlproxyadm'@'192.168.1.224' IDENTIFIED BY '123456'执行读写操作简单测试是否读写分离(观察主从库日志文件，需要打开my.cnf的log = log-filename)./mysql -h192.168.1.224 -umysqlproxyadm -p123456 -P4040

原文地址：MySQL Proxy主从读写分离, 感谢原作者分享。

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