For a simple Nginx configuration like this: For a simple Nginx configuration like this: upstream myservers { server 127.0.0.1:3000; server 127.0.0.1:3001; } server { listen 80; location / { proxy_pass http://myservers; } I have two questions related zero downtime of the application: If I change the configuration to mark the first server server 127.by HUMing - Nginx Mailing List - English