centos7下创建mysql5.6多实例

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

> 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

> 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 = 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

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

> 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

> 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

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

九、登陆mysql实例

> mysql -uroot -p -S /mysql-instance/3308/mysql.sock
时间: 2024-10-10 21:55:52

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