这是我的服务Nginx status命令的结果.
(Debian 8 64bit)

Loaded: loaded (/lib/systemd/system/Nginx.service; enabled)
Active: active (running) since Fri 2015-09-18 12:20:23 CEST; 2h 29min ago
Process: 31845 ExecStop=/sbin/start-stop-daemon --quiet --stop --retry QUIT/5 --pidfile /run/Nginx.pid (code=exited,status=2)
Process: 29093 ExecReload=/usr/sbin/Nginx -g daemon on; master_process on; -s reload (code=exited,status=0/SUCCESS)
Process: 31851 ExecStart=/usr/sbin/Nginx -g daemon on; master_process on; (code=exited,status=0/SUCCESS)
Process: 31848 ExecStartPre=/usr/sbin/Nginx -t -q -g daemon on; master_process on; (code=exited,status=0/SUCCESS)
Main PID: 31852 (Nginx)
CGroup: /system.slice/Nginx.service
       ├─31852 Nginx: master process /usr/sbin/Nginx -g daemon on; master_process on
       ├─31853 Nginx: worker process                           
       ├─31854 Nginx: worker process                           
       ├─31855 Nginx: worker process                           
       └─31856 Nginx: worker process           

我真的不明白什么过程：31845 ExecStop = / sbin / start-stop-daemon –quiet –stop –retry QUIT / 5 –pidfile /run/Nginx.pid(code = exited,status = 2)意思是为什么我得到状态代码2.
无论如何似乎Nginx正常工作.

我该怎么做才能解决此消息？