Nginx And My Node API Stopped Talking To Each Other After A Reboot. Why??

Esme Jansen · 2026-09-16T14:11:43.115Z

Our Node API sits behind nginx on the same VM. It listens on 5000. It's been fine for months, but now after a reboot we get this: [code] If I SSH in and curl localhost:5000 I get a 200 instantly. Restarting nginx fixes it for a while. I'm out of ideas and support tickets are piling up. config hasn't chanegd in ages, as far as I know. the nginx config test passes, teh app's own logs look normal, and CPU and memory on the box are fine. what should I check first so I stop geussing?

502 nginx reverse-proxy1 replies · 190 views · started last mo.

Esme Jansen
@regexrider
187 rep · 11 posts
last mo.
Our Node API sits behind nginx on the same VM. It listens on 5000. It's been fine for months, but now after a reboot we get this:
```
502 Bad Gateway
nginx
```
If I SSH in and curl localhost:5000 I get a 200 instantly. Restarting nginx fixes it for a while. I'm out of ideas and support tickets are piling up.

config hasn't chanegd in ages, as far as I know. the nginx config test passes, teh app's own logs look normal, and CPU and memory on the box are fine. what should I check first so I stop geussing?
2
Kira Brandt
@bytewrangler
22 rep · 3 posts
4 wk. ago
what exactly does /var/log/nginx/error.log say at teh moment of a 502??

4 3 helpful

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