服务器程序员札记：使用systemd管理mysql多实例

使用systemd的rpm package 平台：

Red Hat Enterprise Linux 7; Oracle Linux 7; CentOS 7

SUSE Linux Enterprise Server 12

Fedora 26 and 27

多实例配置文件：

[mysqld@replica01]

datadir=/var/lib/mysql-replica01

socket=/var/lib/mysql-replica01/mysql.sock

port=3307

log-error=/var/log/mysqld-replica01.log

[mysqld@replica02]

datadir=/var/lib/mysql-replica02

socket=/var/lib/mysql-replica02/mysql.sock

port=3308

log-error=/var/log/mysqld-replica02.log

启动多实例：

systemctl start mysqld@replica01

systemctl start mysqld@replica02

多实例自动启动：

systemctl enable mysqld@replica01

systemctl enable mysqld@replica02