1、按照常规安装。[root@ff_girl mysql5122]# chown -R root .[root@ff_girl mysql5122]# chown -R mysql data[root@ff_girl mysql5122]# chgrp -R mysql .[root@ff_girl mysql5122]# cp support-files/my-small.cnf /etc/my5122.cnf[root@ff_girl mysql5122]# scripts/mysql_install_db --basedir=/usr/local/mysql5122/ --datadir=/usr/local/mysql5122/data/ --user=mysqlInstalling MySQL system tables...OKFilling help tables...OKTo start mysqld at boot time you have to copysupport-files/mysql.server to the right place for your system。。。首次启动MYSQL[root@ff_girl mysql5122]# bin/mysqld_safe --defaults-file=/etc/my5122.cnf &[1] 13700[root@ff_girl mysql5122]# 080124 15:01:46 mysqld_safe Logging to '/usr/local/mysql5122/data/localhost.localdomain.err'.080124 15:01:46 mysqld_safe Starting mysqld daemon with databases from /usr/local/mysql5122/data[root@ff_girl mysql5122]# bin/mysql -uroot -p -S/tmp/mysql5122.sockEnter password: Welcome to the MySQL monitor. Commands end with ; or \g.Your MySQL connection id is 1Server version: 5.1.22-rc MySQL Community Server (GPL)Type 'help;' or '\h' for help. Type '\c' to clear the buffer.mysql> show databases;+--------------------+| Database |+--------------------+| information_schema | | mysql | | test | +--------------------+3 rows in set (0.00 sec)给MYSQLD_MULTI赋SHUTDOWN权限。mysql> grant shutdown on *.* to multi_admin@'localhost' identified by '123456';Query OK, 0 rows affected (0.00 sec)mysql> flush privileges;Query OK, 0 rows affected (0.00 sec)mysql> exitBye停掉MYSQL服务。[root@ff_girl ~]# /usr/local/mysql5122/bin/mysqladmin -uroot -p -S/tmp/mysql5122.sock shutdownEnter password: [root@ff_girl ~]# 拷贝元数据。[root@ff_girl mysql5122]# cp data data2[root@ff_girl mysql5122]# mv data data1[root@ff_girl mysql5122]# chown -R mysql data2[root@ff_girl mysql5122]# chgrp -R mysql .示例配置文件[root@ff_girl mysql5122]# cat /etc/my5122.cnf [mysqld_multi]mysqld = /usr/local/mysql5122/bin/mysqld_safemysqladmin = /usr/local/mysql5122/bin/mysqladminuser = multi_adminpassword = 123456# The MySQL server[mysqld1]socket = /tmp/mysql1.sockport = 3307pid-file = /usr/local/mysql5122/data1/david_yeung.pid1datadir = /usr/local/mysql5122/data1language = /usr/local/mysql5122/share/mysql/englishuser = mysql# The MySQL server[mysqld2]port = 3308socket = /tmp/mysql2.sockpid-file = /usr/local/mysql5122/data2/david_yeung.pid2datadir = /usr/local/mysql5122/data2language = /usr/local/mysql5122/share/mysql/englishuser = mysql。。。[isamchk]key_buffer = 8Msort_buffer_size = 8M[myisamchk]key_buffer = 8Msort_buffer_size = 8M[mysqlhotcopy]interactive-timeout[root@ff_girl mysql5122]# 启动两个MYSQL服务[root@ff_girl mysql5122]# /usr/local/mysql5122/bin/mysqld_multi --config-file=/etc/my5122.cnf start 1-2[root@ff_girl mysql5122]# netstat -an | grep 3307tcp 0 0 0.0.0.0:3307 0.0.0.0:* LISTEN [root@ff_girl mysql5122]# netstat -an | grep 3308tcp 0 0 0.0.0.0:3308 0.0.0.0:* LISTEN [root@ff_girl mysql5122]# /usr/local/mysql/bin/mysql -uroot -p -S/tmp/mysql1.sockEnter password: Welcome to the MySQL monitor. Commands end with ; or \g.Your MySQL connection id is 1Server version: 5.1.22-rc-log MySQL Community Server (GPL)Type 'help;' or '\h' for help. Type '\c' to clear the buffer.mysql> \qBye[root@ff_girl mysql5122]# /usr/local/mysql/bin/mysql -uroot -p -S/tmp/mysql2.sockEnter password: Welcome to the MySQL monitor. Commands end with ; or \g.Your MySQL connection id is 1Server version: 5.1.22-rc-log MySQL Community Server (GPL)Type 'help;' or '\h' for help. Type '\c' to clear the buffer.mysql> \qBye[root@ff_girl mysql5122]# 2、另外一种。[root@ff_girl mysql512]# chown -R root .[root@ff_girl mysql512]# chown -R mysql data[root@ff_girl mysql512]# chgrp -R mysql .[root@ff_girl mysql512]# scripts/mysql_install_db --user=mysql --basedir=/usr/local/mysql512/ --datadir=/usr/local/mysql512/data/ [root@ff_girl mysql512]# cp support-files/my-huge.cnf /etc/my512.cnf并且修改如下部分。[client]port = 3308socket = /tmp/mysql512.sock# The MySQL server[mysqld]user=mysqlbasedir=/usr/local/mysql512datadir=/usr/local/mysql512/dataport = 3308socket = /tmp/mysql512.sock[root@ff_girl mysql512]# /usr/local/mysql512/bin/mysqld_safe --defaults-file=/etc/my512.cnf &[root@ff_girl mysql512]# /usr/local/mysql/bin/mysql -uroot -p -S/tmp/mysql512.sockEnter password: Welcome to the MySQL monitor. Commands end with ; or \g.Your MySQL connection id is 1Server version: 5.1.22-rc-log MySQL Community Server (GPL)Type 'help;' or '\h' for help. Type '\c' to clear the buffer.mysql> show databases;+--------------------+| Database |+--------------------+| information_schema | | mysql | | test | +--------------------+3 rows in set (0.00 sec)mysql> \qBye确定3308端口是否在运行。[root@ff_girl mysql512]# netstat -an |grep 3308tcp 0 0 0.0.0.0:3308 0.0.0.0:* LISTEN 把脚本写到启动文件里：/usr/local/mysql512/bin/mysqld_safe --defaults-file=/etc/my512.cnf
本文转自 david_yeung 51CTO博客，原文链接：http://blog.51cto.com/yueliangdao0608/81255，如需转载请自行联系原作者
