Question

upstream timed out (110: Connection timed out) while reading response header from upstream

Hi all, After successful deploying MERN stack app into the DO, I got 504 Gateway Time-out issue and I checked server error logs here(/var/log/nginx/error.log)

2021/09/28 16:33:18 [error] 1252#1252: *6 upstream timed out (110: Connection timed out) while reading response header from upstream, client: x.x.x.x, server: _, request: "POST /api/users/login HTTP/1.1", upstream: "http://127.0.0.1:5000/api/users/login", host: "x.x.x.x", referrer: "http://x.x.x.x/signin"

Any suggestions on how to solve this issue? Thanks

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Accepted Answer

Hi @axiom88guru,

So far in my experience, such errors have always been from the Application side rather than NGINX. Check your Application, I can guarantee there will be a misconfiguration somewhere on it rather than with NGINX.

Other than that, I can’t give more suggestions just because I’m not sure what your setup is or the configuration of the app.