Gunicorn not responding

Question

I'm using Gunicorn to serve a Django application, it was working alright till I changed its timeout from 30s to 900000s, I had to do this because I had a usecase in which a huge file needed to get uploaded and processed (process taking more than 30m in some cases) but after this change Gunicorn goes unresponsive after few hours, I guess the problem is all workers (being 30) will be busy with some requests after this amount of time, the weird thing is it happens even if I don't run that long request at all and it happens with normal exploring in django admin. I wanna know if there's a way to monitor requests on gunicorn and see workers are busy with what requests, I wanna find out the requests that's making them busy. I tried --log-file=- --log-level=debug but it doesn't tell anything about requests, I need more detailed logs.

Answer 1

From the latest Gunicorn docs, on the cmd line/script you can use:

--log-file - ("-" means log to stderr)
--log-level debug

or in the config file you can use:

errorlog = '-'
accesslog = '-'
loglevel = 'debug'

but there is no mention of the parameter format you specified in your question:

--log-file=- 
--log-level=debug

The default logging for access is 'None' (ref), so shot in the dark, but this may explain why are not receiving detailed log information. Here is a sample config file from the Gunicorn source, and the latest Gunicorn config docs.

Also, you may want to look into changing your logging configuration in Django.