- 下载 MySQL 5.7 二制包 [ 推荐官方下载 ] 此下载版本大于5.7.5
wget wget https://dev.mysql.com/get/Downloads/MySQL-5.7/mysql-5.7.18-linux-glibc2.5-x86_64.tar.gz - 解压 MySQL 5.7 二进制包到指定目录
tar zxvf mysql-5.7.18-linux-glibc2.5-x86_64.tar.gz -C /usr/local/ - 解压出来的文件目录中的文件移动到、usr/local/mysql目录下
mv /usr/local/mysql-5.7.18-linux-glibc2.5-x86_64 /usr/local/mysql - 在 MySQL 二进制包目录中创建 mysql-files 目录 [MySQL 数据导入/导出数据专放目录]
mkdir -v /usr/local/mysql/mysql-files - 创建多实例数据目录
mkdir -p /data/mysql/{mysql_3506,mysql_3507,mysql_3508,mysql_3509}
mkdir /data/mysql/mysql_3506/{data,log,tmp}
mkdir /data/mysql/mysql_3507/{data,log,tmp}
mkdir /data/mysql/mysql_3508/{data,log,tmp}
mkdir /data/mysql/mysql_3509/{data,log,tmp} - 修改 MySQL 二进制包目录的所属用户与所属组
chown root.mysql -R /usr/local/mysql - 修改 MySQL 多实例数据目录与 数据导入/导出专放目录的所属用户与所属组
chown mysql.mysql -R /usr/local/mysql/mysql-
files//data/mysql/{mysql_3506,mysql_3507,mysql_3508,mysql_3509}
配置 MySQL 配置文件 /etc/my.cnf
[mysqld_multi]
mysqld = /usr/local/src/mysql/bin/mysqld
mysqladmin = /usr/local/src/mysql/bin/mysqladmin
log = /tmp/mysql_multi.log
[mysqld3506]
datadir = /data/mysql/mysql_3506/data
socket = /data/mysql/mysql_3506/tmp/mysql.sock1
port = 3506
user = mysql
performance_schema = off
innodb_buffer_pool_size = 32M
bind_address = 0.0.0.0
skip-name-resolve = 0
[mysqld3507]
datadir = /data/mysql/mysql_3507/data
socket = /data/mysql/mysql_3507/tmp/mysql.sock1
port = 3507
user = mysql
performance_schema = off
innodb_buffer_pool_size = 32M
bind_address = 0.0.0.0
skip-name-resolve = 0
[mysqld3508]
datadir = /data/mysql/mysql_3508/data
socket = /data/mysql/mysql_3508/tmp/mysql.sock1
port = 3508
user = mysql
performance_schema = off
innodb_buffer_pool_size = 32M
bind_address = 0.0.0.0
skip-name-resolve = 0
[mysqld3509]
datadir = /data/mysql/mysql_3509/data
socket = /data/mysql/mysql_3509/tmp/mysql.sock1
port = 3509
user = mysql
performance_schema = off
innodb_buffer_pool_size = 32M
bind_address = 0.0.0.0
skip-name-resolve = 0
- 初始化各个实例 [ 初始化完成后会自带随机密码在输出日志中 ]
/usr/local/src/mysql/bin/mysqld --initialize --user=mysql --basedir=/usr/local/src/mysql --datadir=/data/mysql/mysql_3506/data
/usr/local/src/mysql/bin/mysqld --initialize --user=mysql --basedir=/usr/local/src/mysql --datadir=/data/mysql/mysql_3507/data
/usr/local/src/mysql/bin/mysqld --initialize --user=mysql --basedir=/usr/local/src/mysql --datadir=/data/mysql/mysql_3508/data
/usr/local/src/mysql/bin/mysqld --initialize --user=mysql --basedir=/usr/local/src/mysql --datadir=/data/mysql/mysql_3509/data - 各实例开启 SSL 连接
/usr/local/src/mysql/bin/mysql_ssl_rsa_setup --user=mysql --basedir=/usr/local/src/mysql --datadir=/data/mysql/mysql_3506/data
/usr/local/src/mysql/bin/mysql_ssl_rsa_setup --user=mysql --basedir=/usr/local/src/mysql --datadir=/data/mysql/mysql_3507/data
/usr/local/src/mysql/bin/mysql_ssl_rsa_setup --user=mysql --basedir=/usr/local/src/mysql --datadir=/data/mysql/mysql_3508/data
/usr/local/src/mysql/bin/mysql_ssl_rsa_setup --user=mysql --basedir=/usr/local/src/mysql --datadir=/data/mysql/mysql_3509/data - 复制多实例脚本到服务管理目录下 [ /etc/init.d/ ]
cp /usr/local/src/mysql/support-files/mysqld_multi.server /etc/init.d/mysqld_multi - 给予脚本可执行权限
sudo chmod +x /etc/init.d/mysqld_multi - 加入service服务管理
chkconfig --add mysqld_multi - 添加环境变量
vim /etc/profile
export MYSQL_HOME=/usr/local/mysql
export PATH=${MYSQL_HOME}/bin:$PATH
执行：
source /etc/profile
-
查看多个实例状态：mysqld_multi report
image.png - 启动各个实例：mysqld_multi start
此时多实例mysql已经搭建完成 - 修改密码：
连接各个实例：
mysql -S /data/mysql/mysql_3509/tmp/mysql.sock1 -uroot -p
输入初始化实例的时的密码
set password for root@'localhost'=password('123456');
如果此时报错需将实例重启后再次修改。
GRANT ALL PRIVILEGES ON . TO 'mysql'@'%' IDENTIFIED BY '123456' WITH GRANT OPTION;
flush privileges;
至此搭建完成。
