创建mysql服务

在RHEL7中，使用systemctl 启动mysql

1，创建启动文件 .service

vi /usr/lib/systemd/system/mysqld.service

[Unit]
Description=MySQL Server
After=network.target
After=syslog.target

[Service]
User=mysql
Group=mysql
Type=forking
PermissionsStartOnly=true
ExecStart= /etc/init.d/mysqld start
ExecStop= /etc/init.d/mysqld stop
ExecReload= /etc/init.d/mysqld restart
LimitNOFILE = 5000

[Install]
WantedBy=multi-user.target

2，重新加载一下服务的配置文件

systemctl daemon-reload

3，开启mysql服务

systemctl  start  mysqld.service

4，关闭mysql服务

systemctl  stop  mysqld.service