Truncated or oversized response headers received f

Question

I recently migrated a python django application from a debian system to a redhat enterprise distribution. The application is hosted using httpd, mod_wsgi and running in a venv in an daemon process. On large requests I now get following error message in the log file:

"Truncated or oversized response headers received from daemon process" 

I have never experienced anything like this and Google is not the key here as well. I checked configuration of apache, but no config is related to response headers in there.

My httpd.conf configuration looks like this ( pretty standard):

WSGIPassAuthorization On
WSGIScriptAlias / /var/www/myapp/wsgi.py
WSGIDaemonProcess my.name python-path=/path/to/myapp/:/path/to/venv/lib/python2.7/site-packages display-name=%{GROUP}
WSGIProcessGroup my.name

Does any Guru have a hint in which direction I should look?

Answer 1

I have installed filebeat which changed my ssl version so that psycopy2 needs to be updated and the error was Truncated or oversized response headers received from daemon process

Do the following:-

Uninstall your psycopy2 package using pip. I am using pip3 because my python version is 3.6.8

sudo pip3 uninstall psycopg2

Reinstall psycopy2 using pip.

sudo pip3 install psycopg2

Before psycopg2-2.7.4 now psycopg2-2.8.3