ruby on rails - Nginx not able to connect to thin server

Question

My rails application on newly configured server is giving NGINX 502 error, same nginx configuration is working for other servers running same application /tmp/thin.2.sock file is being created correctly when i start my application and my application is working properly in background

Nginx error log:

2021/01/25 13:34:30 [crit] 1966#0: *49 connect() to unix:/tmp/thin.2.sock failed (2: No such file or directory) while connecting to upstream, client: XX.XXX.X.XXX, server: domain.com, request: "GET / HTTP/1.1", upstream: "http://unix:/tmp/thin.2.sock:/", host: "domain.com"

Nginx configuration file:

upstream  appuser{
       server   unix:/tmp/thin.0.sock;
       server   unix:/tmp/thin.1.sock;
       server   unix:/tmp/thin.2.sock;
    }

server {
        listen       80 ;
        server_name  domain.com;
        root         /home/appuser/app_name/public;
        access_log   /home/appuser/app_name/log/access.log;
        error_log    /home/appuser/app_name/log/error.log;
        index        index.html;

        gzip            on;
        gzip_comp_level 3;
        gzip_types      text/plain text/css application/javascript image/*;

                location / {
                 proxy_set_header  X-Real-IP  $remote_addr;
                 proxy_set_header  X-Forwarded-For $proxy_add_x_forwarded_for;
                 proxy_set_header  Host $http_host;
                 proxy_redirect    off;
                 try_files /system/maintenance.html $uri $uri/index.html $uri.html @ruby;
                 client_max_body_size 6m;
             }

              location @ruby {
                  proxy_pass http://appuser;
              }

        }

question from:https://stackoverflow.com/questions/65886205/nginx-not-able-to-connect-to-thin-server

Answer 1

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