[Raspberry Pi 3B+ - Keeps restarting upload] NGINX + Supervisor + Gunicorn + Aiohttp

[adolfaka]

Hello!

I have the following problem. When starting the asynchronous HTTP server for asyncio and Python Aiohttp with Gunicorn and Supervisor in conjunction with Nginx, I get an eternal reboot and Docker kills the service.

Please help solve the problem.

• ./docker-compose.yml

• ./Dockerfile.raspberrypi3

• /etc/nginx/nginx.conf

• /etc/supervisor/supervisord.conf

• /home/BICeoK/gunicorn.conf.py
  ./app.py:

  import modules.routes
  from aiohttp import web
  from modules.log import logger

  async def BICeoK():
  logger.info(‘BICeoK successfully launched …’)

    app = web.Application()
    for route in modules.routes.routes:
        app.router.add_route(*route)
    
    return app

[afitzek]

Hi,

This behavior usually means that the supervisord process ended. Can you provide any logs when this happens or could you grant us support access to a device that shows this behaviour?
In general I would recommend splitting up the services into different containers and only run one service per container. Maybe this is also a solution that would work for your use case.

[adolfaka]

Hi,

gunicorn.error.log

The rest of the logs are empty

UUID: 729f265a0ee31a2cef759cab95da660a

[richbayliss]

This seems like a possible Gunicorn bug – https://github.com/benoitc/gunicorn/issues/1801 – your app is restarting because the python process is dying.

[adolfaka]

No errors were found in Python code. After reducing the number of workers at Gunicorn to one, the problem was resolved.

It was: workers = multiprocessing.cpu_count() * 2 + 1
Fixed: workers = 1