Mysql-5.6.x多实例配置

做测试还是采用二进制方式安装，简单方便快速，在原环境安装好的基础上。    

个人不喜欢采用mysqlmulti方式配置多实例，还是采用多实例多进程方式配置。

# mkdir -p /usr/local/mysql/mysql3307    

# chown mysql:mysql /usr/local/mysql/mysql3307

初始化实例目录    

# /usr/local/mysql/scripts/mysql_install_db --user=mysql --basedir=/usr/local/mysql --datadir=/usr/local/mysql/mysql3307

(1) 修改现有配置文件名my.cnf修为3306.cnf,并复制一个配置文件名为3307.cnf    

(2) 3306.cnf配置文件修改，端口,sock位置,pid位置,datadir位置等。

[client]    

port        = 3306     

socket      = /tmp/mysql3306.sock

[mysqld]    

socket      = /tmp/mysql3306.sock     

datadir     = /usr/local/mysql/data

(3) 3307.cnf配置文件修改

port        = 3307     

socket      = /tmp/mysql3307.sock

socket      = /tmp/mysql3307.sock     

datadir     = /usr/local/mysql/mysql3307

/usr/local/mysql/bin/mysqld_safe --defaults-file=/etc/3306.cnf 2>&1 >/dev/null &    

/usr/local/mysql/bin/mysqld_safe --defaults-file=/etc/3307.cnf 2>&1 >/dev/null &

# /usr/local/mysql/bin/mysql -u root -p -p 3306 -s /tmp/mysql3306.sock    

# /usr/local/mysql/bin/mysql -u root -p -p 3307 -s /tmp/mysql3307.sock

修改3307实例密码:    

# /usr/local/mysql/bin/mysqladmin -u root password 'admin' -s /tmp/mysql3307.sock  #设置管理员密码

[root@test ~]# mysql -uroot -p -s /tmp/mysql3306.sock    

enter password:     

welcome to the mysql monitor.  commands end with ; or \g.     

your mysql connection id is 14     

server version: 5.6.24-log source distribution

copyright (c) 2000, 2015, oracle and/or its affiliates. all rights reserved.

oracle is a registered trademark of oracle corporation and/or its    

affiliates. other names may be trademarks of their respective     

owners.

type 'help;' or '\h' for help. type '\c' to clear the current input statement.

mysql>    

mysql> \q     

bye

[root@test ~]# mysql -uroot -p  -s /tmp/mysql3307.sock    

your mysql connection id is 15     

affiliates. other names may be trademarks of their respective owners.

mysql>

指定端口号也是可以访问的：

mysql -uroot -p -h127.0.0.1 -p3307

# /usr/local/mysql/bin/mysqladmin -u root -p -p 3306 -s /tmp/mysql3306.sock shutdown    

# /usr/local/mysql/bin/mysqladmin -u root -p -p 3307 -s /tmp/mysql3307.sock shutdown

或采用kill方式，或编写启动脚本。