Fix 504 Gateway Timeout error using Nginx as reverse Proxy.
When using Nginx as a reverse proxy for Apache, among others, you may get timeouts with error code 504 if an application takes longer to complete a request than the default Nginx request timeout which is 60 seconds. To increase the request timeout in Nginx to serve long-running requests, we need to change the default settings.
This tutorial requires you to be logged in as root, so switch to root user if you are not already.
$ sudo -i
Create a new file timeout.conf in the “/etc/nginx/conf.d/” directory.
# vi /etc/nginx/conf.d/timeout.conf
Add the following code:
proxy_connect_timeout 600; proxy_send_timeout 600; proxy_read_timeout 600; send_timeout 600;
Here we have increased the timeout to 600 seconds, but you can change it to suit your needs.
For the new settings to take effect a restart of Nginx is required.
# systemctl restart nginx