文章目录
6.6.1 准备多个目录
mkdir -p /data/330{7,8,9}/data
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’”
