Why docker server sometimes gives 504 error?

Question

Python

Hello, I started the server with Docker:
docker run -p 8080:8080 project
It works fine, responds as needed, even from the Internet.
But when I use it from my Python application, which uses aiohttp to make requests asynchronously, I always or sometimes get a 504 error, and docker itself writes in the console: "Error handling request". Why is this happening and how to fix it?
The error is clearly due to the large number of requests sent immediately to the server with docker. Is he really that bad with the processing of such a volume? I would like to use this server as api...

Answer 1

As with a regular server, the container has performance limitations.
So look at the container logs, maybe it's in the app configuration. server, possibly in resources - CPU / RAM.
In the first case, the settings will help, in the second - you can increase the resources of the container or raise several containers with the loadbalancer.

Answer 2

504 usually means you've run out of workers. What is logical with a large number of parallel requests

Answer 3

Hmm, looks like something is broken.

here is the answer

похоже, что project контейнер не очень рабочий