Comment 11 for bug 1421427

The root cause of that problem is that 'django_session_engine' is not set during installation
 https://github.com/stackforge/fuel-library/blob/master/deployment/puppet/horizon/templates/local_settings.py.erb#L132

while is defined here https://github.com/stackforge/fuel-library/blob/1e7b825756cf77acab285e42fbf79f4299437067/deployment/puppet/horizon/spec/classes/horizon_init_spec.rb#L82

Note, that on the 6.0 version of MOS everything works fine

Can we set check that this variable is always set up?