How to solve 502 error on nginx - digitalocen while generating pdf file?

Hello there,

You can verify that Nginx is running fine. 502 Bad Gateway Nginx is a generic Nginx error.

To check the status:

 sudo systemctl status nginx

If there is an error message you can also check the journal logs to extract additional information:

journalctl -xe

To restart the service:

 sudo systemctl restart nginx

I would recommend checking your error logs:

tail -f /var/log/nginx/error.log

Also, I'll include this question from our community, make sure to check Bobby's reply as it includes really useful information (video of troubleshooting as well)

https://www.digitalocean.com/community/questions/502-bad-gateway-nginx-2

Regards

Hi @happygreenbluejellyfish,

Are you using Nginx as a proxy? If yes, try setting higher values for the proxy like so:

    proxy_read_timeout 300s;
    proxy_connect_timeout 75s;
    proxy_pass http://localhost:9000;

If you are not using a proxy and the error you see in Nginx is the only thing you see in there, I’ll recommend checking out your Application and the error logs on it.