Connection Error 104

[PumpkinsLemon]

First Check

• I added a very descriptive title here.
• I used the GitHub search to find a similar question and didn't find it.
• I searched the FastAPI documentation, with the integrated search.
• I already searched in Google "How to X in FastAPI" and didn't find any information.
• I already read and followed all the tutorial in the docs and didn't find an answer.
• I already checked if it is not related to FastAPI but to Pydantic.
• I already checked if it is not related to FastAPI but to Swagger UI.
• I already checked if it is not related to FastAPI but to ReDoc.

Commit to Help

• I commit to help with one of those options 👆

Example Code

gunicorn -w $1 -b 0.0.0.0:${PORT} --max-requests 1000  --max-requests-jitter 100 --timeout 300 -k uvicorn.workers.UvicornH11Worker service_v2.main:app --error-logfile log/error.log --log-level warning

Description

So i have a project that was made back using FastAPI and I deployed it on containers using gunicorn and unicorn.
now, connection Error 104 is causing me a lot of distress
recv() failed (104: Connection reset by peer) while reading response header from upstream
What measures should I take to solve this problem

Operating System

Linux

Operating System Details

No response

FastAPI Version

0.83.0

Pydantic Version

1.9.2

Python Version

3.6.8

Additional Context

No response

[estebanx64]

First of all can you provide the gunicorn logs, they should be in some log/error.log var/logs.
Second one, are you behind a NGINX/Traefik Proxy? it may be a configuration between the proxy and gunicorn too

[PumpkinsLemon]

Yes, this error occurred between the nginx agent and my service. Second Gunicorn logs have no content, and these requests were not actually sent to my service provider.

[estebanx64]

can you leave here your nginx configuration file?

[PumpkinsLemon]

My nginx configuration adopts the default configuration. It is worth noting that there is a significant difference between the timeout time (60s) and the timeout time of my service (300s)

[YuriiMotov]

Let's close this for now to keep the discussions clean and organized.
If you’ve found a solution, please share it here.
If you still need help, feel free to let us know.