文章目录

• • 6.6.2 准备配置文件
  • vim /data/3309/my.cnf [mysqld] basedir=/usr/local/mysql datadir=/data/3309/data socket=/data/3309/mysql.sock log_error=/data/3309/mysql.log port=3309 server_id=9

6.6.2 准备配置文件

vim /data/3307/my.cnf
[mysqld]
basedir=/usr/local/mysql
datadir=/data/3307/data
socket=/data/3307/mysql.sock
log_error=/data/3307/mysql.log
port=3307
server_id=7

vim /data/3308/my.cnf
[mysqld]
basedir=/usr/local/mysql
datadir=/data/3308/data
socket=/data/3308/mysql.sock
log_error=/data/3308/mysql.log
port=3308
server_id=8

vim /data/3309/my.cnf
[mysqld]
basedir=/usr/local/mysql
datadir=/data/3309/data
socket=/data/3309/mysql.sock
log_error=/data/3309/mysql.log
port=3309
server_id=9

6.6.3 初始化三套数据

mv /etc/my.cnf /etc/my.cnf.bak

mysqld --initialize-insecure --user=mysql --datadir=/data/3307/data --basedir=/usr/local/mysql
mysqld --initialize-insecure --user=mysql --datadir=/data/3308/data --basedir=/usr/local/mysql
mysqld --initialize-insecure --user=mysql --datadir=/data/3309/data --basedir=/usr/local/mysql

6.6.4 systemd管理多实例
cd /etc/systemd/system
cp mysqld.service mysqld3307.service
cp mysqld.service mysqld3308.service
cp mysqld.service mysqld3309.service

vim mysqld3307.service
ExecStart=/usr/local/mysql/bin/mysqld --defaults-file=/data/3307/my.cnf
vim mysqld3308.service
ExecStart=/usr/local/mysql/bin/mysqld --defaults-file=/data/3308/my.cnf
vim mysqld3309.service
ExecStart=/usr/local/mysql/bin/mysqld --defaults-file=/data/3309/my.cnf

6.6.5 授权

chown -R mysql.mysql /data/*

6.6.6 启动
systemctl start mysqld3307.service
systemctl start mysqld3308.service
systemctl start mysqld3309.service

netstat -lnp|grep 330

mysql -S /data/3307/mysql.sock -e “show variables like ‘server_id’”
mysql -S /data/3308/mysql.sock -e “show variables like ‘server_id’”
mysql -S /data/3309/mysql.sock -e “show variables like ‘server_id’”