centos7.x设置mysql自启动

编译安装mysql并成功初始化后

whereis mysql

cd /usr/local/mysql
cp support-files/my-default.cnf /etc/my.cnf

vi /etc/systemd/system/mysqld.service

[Unit]
Description=MySQL Server
Documentation=man:mysqld(8)
Documentation=http://dev.mysql.com/doc/refman/en/using-systemd.html
After=network.target
After=syslog.target

[Install]
WantedBy=multi-user.target

[Service]
User=mysql
Group=mysql
ExecStart=/usr/local/mysql/bin/mysqld --defaults-file=/etc/my.cnf
LimitNOFILE = 5000

#添加到开机启动
systemctl enable mysqld.service
systemctl start mysqld
systemctl stop mysqld
systemctl status mysqld