XF 1.5 RSS having 502 Bad Gateway error

[Nicky Vermeersch]

Hello everyone. I recently noticed that my RSS feeds stopped working, they are returning error 502 bad gateway whenever something visits them. I'm running PHP with PHP-FPM along nginx.

I'm not finding anything useful in php-fpm's error logs, and the nginx error log only shows a pretty vague
2017/09/22 13:09:10 [error] 30367#0: *1933276 recv() failed (104: Connection reset by peer) while reading response header from upstream, client: 178.119.67.190, server: www.mcmiddleearth.com, request: "GET /forums/development-blogs.23/index.rss HTTP/1.1", upstream: "fastcgi://127.0.0.1:9000", host: "www.mcmiddleearth.com", referrer: "https://www.mcmiddleearth.com/forums/"

Does anyone ever ran into this issue that apparently happens often with nginx and php-fpm?

edit: tried systemctl restart php-fpm and now its working. Very odd. Since it still crashed somehow, surely it must have a reason why it stopped working?

 

[Mike]

You would need to check your PHP-FPM logs to see if it has any better indicator of why this happened.

 

[Nicky Vermeersch]

Apart from some child processes exiting with code 11 after a long response time, there's not much explicit info in there that makes me point in the right direction