nginx Request line too large

Question

I'm getting the error:

Bad Request
Request Line is too large (6060 > 4094)

When I access the a specific url on my server like this:

/api/categorize?packages=package1,package2,...packageN

On nginx.conf I have:

large_client_header_buffers 8 16k;

client_header_buffer_size 8k;

I can't find documentation on that specific issue, the docs for large_client_header_buffers mention 400 Bad request, but changing "large_client_header_buffers" from 4 8k; or 8 8k; or 8 16; didn't fix the problem.

Answer 1

This error seems to come from a Gunicorn backend, not from Nginx. You can change it's limit by passing the parameter --limit-request-line or set limit_request_line.

You can see a description here.