(转) centos7下创建mysql5.6多实例

原文：http://blog.csdn.net/a1010256340/article/details/77483504

一、mysql安装目录说明
mysql5.6以二进制安装包安装在/data/mysql56下
数据目录为/data/mysql56/data下
配置文件为/etc/my.cnf下

二、多实例目录说明
/mysql-instance
         |-- 3308
                  |-- data  #3308实例数据目录
         |-- 3309
                  |-- data  #3309实例数据目录

 

1 2	> mkdir -p /mysql-instance/3308/data > mkdir -p /mysql-instance/3309/data

                  
三、复制配置文件到实例目录下

 

1 2	> cp /data/mysql56/support-files/my-default.cnf /mysql-instance/3308/my.cnf > cp /data/mysql56/support-files/my-default.cnf /mysql-instance/3309/my.cnf

四、修改配置文件

 

1 2	> vi /mysql-instance/3308/my.cnf > vi /mysql-instance/3309/my.cnf

 

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[client] port = 3308 socket = /mysql-instance/3308/mysql.sock [mysql] no-auto-rehash [mysqld] user = mysql port = 3308 socket = /mysql-instance/3308/mysql.sock basedir = /data/mysql56 datadir = /mysql-instance/3308/data pid-file = /mysql-instance/3308/mysql.pid relay-log = /mysql-instance/3308/relay-bin relay-log-info-file = /mysql-instance/3308/relay-log.info server-id = 12 [mysqld_safe] log-error = /mysql-instance/3308/mysql.err pid-file = /mysql-instance/3308/mysql.pid

3309的配置同上，只需把3308的地方换成3309

五、创建mysql多实例启动文件

 

1 2	> vi /mysql-instance/3308/mysql > vi /mysql-instance/3309/mysql

 

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#!/bin/sh port=3308 mysql_user="root" #请填写自已数据库密码 mysql_pwd="123456" cmd_path="/data/mysql56/bin" mysql_sock="/mysql-instance/${port}/mysql.sock"   mysql_start() {     if [ ! -e "$mysql_sock" ];then         printf "mysql start ... \n"         /bin/sh ${cmd_path}/mysqld_safe --defaults-file=/mysql-instance/${port}/my.cnf 2>&1 > /dev/null &     else         printf "mysql is running ... \n"         exit     fi }   mysql_stop() {     if [ ! -e "$mysql_sock" ];then         printf "mysql is stopped ... \n"         exit     else         printf "mysql stop ... \n"         ${cmd_path}/mysqladmin -u ${mysql_user} -p${mysql_pwd} -S /mysql-instance/${port}/mysql.sock shutdown     fi }   mysql_restart() {     printf "mysql restart ... \n"     mysql_stop     sleep 2     mysql_start }   case $1 in     start) mysql_start ;;     stop) mysql_stop ;;     restart) mysql_restart ;; *) printf "usage: /data/${port}/mysql {start|stop|restart}\n" esac

 
六、授权mysql用户目录权限

 

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> chown -R mysql.mysql /mysql-instance > chmod 700 /mysql-instance/3308/mysql > chmod 700 /mysql-instance/3309/mysql

 
七、初始化mysql多实例数据库文件

 

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> cd /daa/mysql56/scripts > ./mysql_install_db --basedir=/data/mysql56 --datadir=/mysql-instance/3308/data --user=mysql > ./mysql_install_db --basedir=/data/mysql56 --datadir=/mysql-instance/3309/data --user=mysql

 
八、启动mysql多实例

 

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> /mysql-instance/3308/mysql start > /mysql-instance/3309/mysql start > netstat -lntup|grep 330

九、登陆mysql实例

 

1	> mysql -uroot -p -S /mysql-instance/3308/mysql.sock