Apache error "Truncated or oversized response headers received from daemon process" when using Django

Question

We have a Django application using mod_wsgi working fine on our Ubuntu 16 instance. When we spun up a new Ubuntu 18 instance, and attempt to log into our application, we get:

[Tue Jan 10 22:12:00.930300 2023] [wsgi:error] [pid 11481:tid 140103479047936] [client 10.61.23.144:61958] Truncated or oversized response headers received from daemon process 'server': /home/.../wsgi.py, referer: https://application/login/?next=/application/
[Tue Jan 10 22:12:00.931998 2023] [core:notice] [pid 6523:tid 140103626501056] AH00052: child pid 11479 exit signal Segmentation fault (11)

In searching for answers, we've seen several posts suggesting that we add this line to our apache2.conf file, which we did:

WSGIApplicationGroup %{GLOBAL}

However, this did not address the problem. Also tried the suggestions noted on https://serverfault.com/questions/844761/wsgi-truncated-or-oversized-response-headers-received-from-daemon-process , but this also did not solve the problem.

We increased Apache logging to info but aside from the "Truncated or oversized response headers" and "Segmentation fault" no other information was logged.

Hoping we may have missed a trick or two.

Answer 1

This solved the issue for us: https://github.com/psycopg/psycopg2/issues/543 .

Specifically, installing psycopg2 library from source.