failed (111: Connection refused) while connecting to upstream

March 8, 2017 37.3k views
Nginx Django Ubuntu

I am getting failed (111: Connection refused) while connecting to upstream error in my nginx error log file while trying to access the Django app on my droplet. I understand that the issue my be that nginx is not finding gunicorn. I tried to start gunicorn but getting "start: Unknown job: gunicorn" error, I even tried restarting the droplet but still getting the gunicorn "unknown gunicorn".

There is also nothing getting printed in my gunicon.log file. I also tried the solutions on similar posts on DO but nothing works

Any help will be highly appreciated, been having this issue for two days with no clue

3 Answers
kamstan6 March 10, 2017
Accepted Answer

@hansen I managed to find the solution, it seems like it was timing out, I set --timeout parameter to 120 and it works now. Thank you once again for all the insights provided.

It led to the solution.

When launching Gunicorn, try adding the parameter --log-level debug which should add debug to log. Make sure you haven't change the path to the log file to somewhere else in gunicorn.conf

  • you mean like "sudo service gunicorn --log-level start". if you can give me the syntax of the command @hansen

    • @kamstan6 No, the problem is with Gunicorn (or your project), so we need to start it by itself:
      gunicorn --bind unix:/path/to/myproject/myproject.sock myproject.wsgi:application --log-level debug
      If you use your IP to bind to, then you can use that.

      • I am still not getting anything in my gunicorn.log file here is my gunicorn.conf and nginx.conf for more clarity


        description "Gunicon application server handling tecjavenue 137 website"
        start on runlevel [2345]
        stop on runlevel [!2345]
        setuid arnold
        setgid www-data
        chdir /home/arnold/beta_test/ta_137_deplopy/project
        exec /home/arnold/beta_test/myenv/bin/gunicorn --workers 3 --bind techAvenue.wsgi:application --access-logfile  /var/log/upstart/gunicorn.log --log-level debug


        server {
            listen 80;
            error_log /var/log/nginx/ta_137.log;
            access_log /var/log/nginx/ta_137_access.log;
            location = /favicon.ico { access_log off; log_not_found off; }
            location /static/ {
                root /home/arnold/beta_test/ta_137_deplopy/project;
            location / {
                include proxy_params;

        But I am still getting the 111: connection refused and my gunicorn.log file has no logs in it.

        Thank you again for your support

        • This is not a problem with Nginx, since your Gunicorn can't start, then Nginx of course cannot connect to it.

          Try executing this, that should give you the error log instead of access log:

          /home/arnold/beta_test/myenv/bin/gunicorn --workers 3 --bind techAvenue.wsgi:application --error-logfile /var/log/upstart/gunicorn.log --log-level debug
          • getting the following gunicorn.log file, what could be the possible issue

             logger_class: gunicorn.glogging.Logger
            [2017-03-08 18:34:16 +0000] [3675] [INFO] Starting gunicorn 19.6.0
            [2017-03-08 18:34:16 +0000] [3675] [DEBUG] Arbiter booted
            [2017-03-08 18:34:16 +0000] [3675] [INFO] Listening at: (3675)
            [2017-03-08 18:34:16 +0000] [3675] [INFO] Using worker: sync
            [2017-03-08 18:34:16 +0000] [3680] [INFO] Booting worker with pid: 3680
            [2017-03-08 18:34:16 +0000] [3681] [INFO] Booting worker with pid: 3681
            [2017-03-08 18:34:16 +0000] [3682] [INFO] Booting worker with pid: 3682
            [2017-03-08 18:34:16 +0000] [3675] [DEBUG] 3 workers
            [2017-03-08 18:35:42 +0000] [3675] [INFO] Handling signal: int
            [2017-03-08 18:35:42 +0000] [3680] [INFO] Worker exiting (pid: 3680)
            [2017-03-08 18:35:42 +0000] [3681] [INFO] Worker exiting (pid: 3681)
            [2017-03-08 18:35:42 +0000] [3682] [INFO] Worker exiting (pid: 3682)
            [2017-03-08 18:35:42 +0000] [3675] [INFO] Shutting down: Master
        • @kamstan6
          That was very little debug-info. I expected more, but looking at the timestamps, it looks like it's starting just fine, but a minute later it shuts down - did you visit the site within that minute?

          Are you using MySQL or SQLite?

          Can you try starting it with --spew, which will show everything going on.

          /home/arnold/beta_test/myenv/bin/gunicorn --workers 3 --bind techAvenue.wsgi:application --error-logfile /var/log/upstart/gunicorn.log --log-level debug --spew

          It might be way too much information for displaying here, but maybe the error will give you directions - otherwise you should probably paste it to and link here.

@hansen, thank you very much for all the help, I am trying to start the gunicorn service and getting am getting this error

start: Job failed to start

and even if I try to run restart I get

stop: Unknown instance: 
start: Job failed to start

I am suspecting that gunicorn is not started, not sure what to do, I even restarted the droplet but still getting the same error.
Sorry again for all these questions it is my first time deploying a Django app.

  • You should probably ask in a Django-based forum, since this might not be the best place for such questions.
    You need to look at your error logs - and have debugging enabled. That's the only way to somehow get closer to a solution.
    And yes, Gunicorn service doesn't start, that's why it throws an error. But it can't start because of a problem somewhere in your code.

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