本文實例講述了centos7環境下創建mysql5.6多實例的方法。，具體如下：

一、mysql安裝目錄說明

mysql5.6以二進制安裝包安裝在/data/mysql56下
數據目錄為/data/mysql56/data下
配置文件為/etc/my.cnf下

二、多實例目錄說明

/mysql-instance
         |-- 3308
                  |-- data  #3308實例數據目錄
         |-- 3309
                  |-- data  #3309實例數據目錄

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

三、復制配置文件到實例目錄下

> 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

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

[client]port = 3308socket = /mysql-instance/3308/mysql.sock[mysql]no-auto-rehash[mysqld]user = mysqlport = 3308socket = /mysql-instance/3308/mysql.sockbasedir = /data/mysql56datadir = /mysql-instance/3308/datapid-file = /mysql-instance/3308/mysql.pidrelay-log = /mysql-instance/3308/relay-binrelay-log-info-file = /mysql-instance/3308/relay-log.infoserver-id = 12[mysqld_safe]log-error = /mysql-instance/3308/mysql.errpid-file = /mysql-instance/3308/mysql.pid

3309的配置同上，只需把3308的地方換成3309

五、創建mysql多實例啟動文件

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

#!/bin/shport=3308mysql_user="root"#請填寫自已數據庫密碼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、授權mysql用戶目錄權限

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