title: session issue with django+apache+mod_wsgi
body: <p>I've written a django application, and put it on a CentOS server. It is definitely okay when I use django development web server.</p>
  
  <p>Such as I start it by "python ./manage.py runserver", and access that server from browser on another computer. I can sign in one time, and access all the pages without issues.</p>
  
  <p>However when I run it with apache+mod_wsgi, I just found I have to login with user and password time by time. I think maybe there is some problem with the session middleware, so, how can I find the root cause and fix it?</p>