nginx.service: Failed to read PID from file /run/nginx.pid: Invalid argument解决

先附上错误信息：

 (myblog) root@Dapeng:/home/uwsgi# service nginx status

 ● nginx.service - A high performance web server and a reverse proxy server

    Loaded: loaded (/lib/systemd/system/nginx.service; enabled; vendor preset: enabled)

    Active: active (running) since Thu -- :: CST; 29s ago

   Process:  ExecStop=/sbin/start-stop-daemon --quiet --stop --retry QUIT/ --pidfile /run/nginx.pid (code=exited, status=/SUCCESS)

   Process:  ExecStart=/usr/sbin/nginx -g daemon on; master_process on; (code=exited, status=/SUCCESS)

   Process:  ExecStartPre=/usr/sbin/nginx -t -q -g daemon on; master_process on; (code=exited, status=/SUCCESS)

  Main PID:  (nginx)

     Tasks:

    Memory: 1.8M

       CPU: 35ms

    CGroup: /system.slice/nginx.service

            ├─ nginx: master process /usr/sbin/nginx -g daemon on; master_process on

            └─ nginx: worker process                           

 May  :: Dapeng systemd[]: Stopped A high performance web server and a reverse proxy server.

 May  :: Dapeng systemd[]: Starting A high performance web server and a reverse proxy server...

 May  :: Dapeng systemd[]: nginx.service: Failed to read PID from file /run/nginx.pid: Invalid argument

 May  :: Dapeng systemd[]: Started A high performance web server and a reverse proxy server.

我的操作系统是ubuntu16.04，今天突然重启nginx后，发现给我报了一个502的错误，看了一下nginx的状态，里面有一个错误提示，就如同标题那样，遂Google，在一个歪果仁的个人博客中看到一个链接，解决了我的问题，我这里只做一个搬运工，有问题的小伙伴也可以参考。再附上ubuntu社区参考链接：bug for ubuntu

这个问题被当做bug来解决了，不过好在有大神解决，附上解决思路：

 It seems to be a race between systemd and nginx. As if systemd was expecting the PID file to be populated before nginx had the time to create it.

 Workaround:

  mkdir /etc/systemd/system/nginx.service.d

  printf "[Service]\nExecStartPost=/bin/sleep 0.1\n" > /etc/systemd/system/nginx.service.d/override.conf

  systemctl daemon-reload

然后我们再重启一下就好了。

巴特西

nginx.service: Failed to read PID from file /run/nginx.pid: Invalid argument解决

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