centos - nginx下Failed to start SYSV

nginx无法正常启动

[root@VM_110_123_centos html]# systemctl status nginx.service -l
* nginx.service - SYSV: Nginx is an HTTP(S) server, HTTP(S) reverse proxy and IMAP/POP3 proxy server
   Loaded: loaded (/etc/rc.d/init.d/nginx; bad; vendor preset: disabled)
   Active: failed (Result: timeout) since Sun 2016-12-18 13:08:31 CST; 30s ago
     Docs: man:systemd-sysv-generator(8)
  Process: 14458 ExecStart=/etc/rc.d/init.d/nginx start (code=exited, status=0/SUCCESS)
   CGroup: /system.slice/nginx.service
           |-12941 nginx: master process /usr/local/nginx/sbin/nginx -c /usr/local/nginx/conf/nginx.con
           |-12943 nginx: worker process                                          
           |-12944 nginx: worker process                                          
           |-12945 nginx: worker process                                          
           `-12946 nginx: worker process                                          

Dec 18 13:03:31 VM_110_123_centos systemd[1]: Starting SYSV: Nginx is an HTTP(S) server, HTTP(S) reverse proxy and IMAP/POP3 proxy server...
Dec 18 13:03:31 VM_110_123_centos systemd[1]: PID file /var/run/nginx.pid not readable (yet?) after start.
Dec 18 13:08:31 VM_110_123_centos systemd[1]: nginx.service start operation timed out. Terminating.
Dec 18 13:08:31 VM_110_123_centos systemd[1]: Failed to start SYSV: Nginx is an HTTP(S) server, HTTP(S) reverse proxy and IMAP/POP3 proxy server.
Dec 18 13:08:31 VM_110_123_centos systemd[1]: Unit nginx.service entered failed state.
Dec 18 13:08:31 VM_110_123_centos systemd[1]: nginx.service failed.

这个是什么问题啊