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Question

I got error like Phusion Passenger is currently not serving any applications. while trying to restart passenger with passenger-config restart-app command.

I googled but most of the answers were only related with deployment.

I want to restart passenger in the development environment as I am using vhost. PS. My web server is nginx.

Answer 1

See my comment here .

You need to explicitly specify, where actual Ruby code of a Rails application is located, using passenger_app_root directive, described in Passenger's documentaion .

Without this directive, Passenger will thinck, that actual Ruby code is located in path, specified with root nginx-directive.

Example of a correct configuration file '/etc/nginx/sites-available/app_name':

server {
  listen 80;

  server_name 188.225.35.216;
  passenger_enabled on;
  rails_env    production;
  root         /path/to/your/app/public/folder;
  passenger_app_root /path/to/your/app/code; # <<< Point Passenger to application code

  # redirect server error pages to the static page /50x.html
  error_page   500 502 503 504  /50x.html;
  location = /50x.html {
    root   html;
  }
}

In my case, Passenger was't serving my Rails app, that was deployed with Capistrano. I had have to specify a value for passenger_app_root like following /var/www/my_app/current .

This will point Passenger exactly, where application code is presented.

Answer 2

I am betting your passenger is running.
If you look at step 3, it hints at what I am talking about.

https://www.phusionpassenger.com/library/install/nginx/install/oss/trusty/

Nginx will take care of passenger for you if it's set up to do that. Can you try the command in that tutorial and look for passenger processes too ?

sudo /usr/sbin/passenger-memory-stats

Good luck!