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mysql多实例（二）

2016-08-11 21:41 357 查看

5、准备配置文件

1	mysqld_multi --example > /data/multi.cnf #提供多配置文件模板

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vim /data/multi.cnf #修改模板，这里比较简易[mysqld_multi]mysqld = /usr/local/mysql/bin/mysqld_safemysqladmin = /usr/local/mysql/bin/mysqladminuser = root #这个用户应该有关机权限，然后没有其他的权限。建议创建一个通用的,multi_admin用户控制其它的MySQL用户，这里有个例子#GRANT SHUTDOWN ON *.* TO multi_admin@localhost IDENTIFIED BY 'password' [mysqld1]socket = /tmp/mysql.sock1port = 3306pid-file = /data/3306/mysql.piddatadir = /data/3306/data [mysqld2]socket = /tmp/mysql.sock2port = 3307pid-file = /data/3307/mysql.piddatadir = /data/3307/data#language = /usr/local/mysql/share/mysql/english#user = unix_user1 [mysqld3]#mysqld = /path/to/mysqld_safe#ledir = /path/to/mysqld-binary/#mysqladmin = /path/to/mysqladminsocket = /tmp/mysql.sock3port = 3308pid-file = /data/3308/mysql.piddatadir = /data/3308/data#language = /usr/local/mysql/share/mysql/swedish#user = unix_user2

以上是简易的配置文件。这个配置文件只能让MySQL启动起来。 6、启动MySQL

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mysqld_multi --defaults-file=/data/multi.cnf start 1,2,3ss -tnl #查看监听端口LISTEN 0 50 *:3306 *:* LISTEN 0 50 *:3307 *:* LISTEN 0 50 *:3308 *:*

7、登录mysql与一些安全措施

1	mysql -S /tmp/mysql.sock1 #指定socket登录

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mysql> show databases;+--------------------+| Database |+--------------------+| information_schema || mysql || performance_schema || test |+--------------------+4 rows in set (0.01 sec) mysql> drop database test;Query OK, 0 rows affected (0.04 sec) mysql> select User,Host from mysql.user;+------+-----------+| User | Host |+------+-----------+| root | 127.0.0.1 || root | ::1 || | localhost || root | localhost || | node1 || root | node1 |+------+-----------+6 rows in set (0.01 sec) mysql> delete from mysql.user where User='';Query OK, 2 rows affected (0.00 sec) mysql> delete from mysql.user where Host='::1';Query OK, 1 row affected (0.00 sec) mysql> delete from mysql.user where Host='node1';Query OK, 1 row affected (0.00 sec)

其余的操作类似，就不在演示 8、关闭MySQL

123	mysqladmin -S /tmp/mysql.sock1 shutdown 建议使用musqld_multi --defaults-file stop [#,#]killall mysqld 不建议使用

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