apache2 crashes when trying to dynamically load python module

Question

I have a Django application, which has the following code init:

import importlib

def get_class(m):
    module_name, class_name = m.rsplit('.', 1)
    module = importlib.import_module(module_name)       
    return getattr(module, class_name)

Whenever I make a request which requires a call of this function, in the error.log I see child pid 27228 exit signal Segmentation fault (11), possible coredump in /etc/apache, and request fails with error code 500.

The strange thing is that if I call that function from the command line, everything works well. Seems like mod_wsgi does not allow to dynamically load a python module.

I tried to do the following with all combinations:

Use virtual environment
Downloaded sources of python 3.6, compiled and installed it,
Recompiled the mod_wsgi for both default python 3.4.3 and new python 3.6.

The error is always the same:

OS: Ubuntu Server 14.04 Apache: 2.4.7 Python: 3.4.3, 3.6.0

On my Ubuntu Desktop 14.04 everything works fine. Apache is installed by sudo apt-get install apache2

in /etc/apache2/sites-enabled/000-default.conf

<Directory /my/django/app/appp>
    <Files wsgi.py>
    Require all granted
    </Files>
</Directory>
WSGIDaemonProcess myapp python-path=/my/django/app
WSGIProcessGroup myapp
WSGIScriptAlias / /my/django/app/app/wsgi.py
WSGIApplicationGroup %{GLOBAL}

UPDATE:

I have downloaded and compiled apache2 and recompiled mod_wsgi. Still the same problem.

UPDATE 2: Not sure if this will help, but the OS is on a Azure VM with Ubuntu Server 14.04

Does running on the command line mean `python manage.py runserver` or actually executing the code as a python command line application? — themanatuf, Feb 21 '17 at 12:27
means actually executing the code as a python command line application — Vahagn, Feb 21 '17 at 12:35
"wwwuser can't access to /etc/.. directory." Do you mean www-data? Why does it need to? — Vahagn, Feb 21 '17 at 12:37
The problem is deeper: http://stackoverflow.com/questions/42374775/apache2-mod-wsgi-crashes-when-importing-pyodbc — Vahagn, Feb 21 '17 at 19:32

apache2 crashes when trying to dynamically load python module

0 Answers0