[Answered ]-Django logging not working in production

I managed to solve the problem by putting this line of code to apache configuration file:

WSGIApplicationGroup %{GLOBAL}

Explanation could be found here: https://code.google.com/p/modwsgi/wiki/ApplicationIssues#Python_Simplified_GIL_State_API

I have met the same error. I found that if I created a new folder and file, the user-name and group-name are both Apache. The error will be missed.