mysql5.7单实例自启动服务配置过程

1.mysql版本

[root@clq system]# mysql -v
welcome to the mysql monitor.  commands end with ; or \g.
your mysql connection id is 49
server version: 5.7.33 mysql community server (gpl)

2.配置mysqld.service文件

[unit]
description=mysql server daemon
after=network.target mysql-keygen.target
[service]
type=forking
execstart=/usr/local/mysql/support-files/mysql.server start
execstop=/usr/local/mysql/support-files/mysql.server   stop
execreload=/bin/kill -hup $mainpid
[install]
wantedby=multi-user.target
[install]
wantedby=multi-user.target

3.mysqld.service文件放置的地方

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

4.自启动

 systemctl daemon-reload 
systemctl enable --now mysqld
[root@mysql ~]# ss -antl
state         recv-q        send-q               local address:port               peer address:port        process        
listen        0             128                        0.0.0.0:111                     0.0.0.0:*                          
listen        0             32                   192.168.122.1:53                      0.0.0.0:*                          
listen        0             128                        0.0.0.0:22                      0.0.0.0:*                          
listen        0             5                        127.0.0.1:631                     0.0.0.0:*                          
listen        0             128                           [::]:111                        [::]:*                          
listen        0             128                           [::]:22                         [::]:*                          
listen        0             5                            [::1]:631                        [::]:*                          
listen        0             80                               *:3306                          *:*  

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