Linux安装多个MySQL

核心提示： 给MYSQLD_MULTI赋SHUTDOWN权限，mysql> grant shutdown on *.* to multi_admin@'localhost' identified by '123456';Query OK, 0 rows affec

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> exit
Bye

停掉MYSQL服务。

[root@ff_girl ~]# /usr/local/mysql5122/bin/mysqladmin -uroot -p -S/tmp/mysql5122.sock shutdown
Enter 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_safe
mysqladmin = /usr/local/mysql5122/bin/mysqladmin
user　　　 = multi_admin
password　 = 123456
# The MySQL server
[mysqld1]
socket　　 = /tmp/mysql1.sock
port　　　 = 3307
pid-file　 = /usr/local/mysql5122/data1/david_yeung.pid1
datadir　　= /usr/local/mysql5122/data1
language　 = /usr/local/mysql5122/share/mysql/english
user　　　 = mysql
# The MySQL server
[mysqld2]
port　　　　　　= 3308
socket　　　　　= /tmp/mysql2.sock
pid-file　 = /usr/local/mysql5122/data2/david_yeung.pid2
datadir　　= /usr/local/mysql5122/data2
language　 = /usr/local/mysql5122/share/mysql/english
user　　　 = mysql
。。。
[isamchk]
key_buffer = 8M
sort_buffer_size = 8M