Remove variable SESSION_SERIALIZER from settings.py

[Christian Berendt]

Check if it is possible to remove the variable SESSION_SERIALIZER from settings.py and test/settings.py during the K-cycle.

[Dirk Mueller (dmllr)]

Can you give a rationale on why removing this is a good idea?

[Julie Pichon (jpichon)]

I believe this is a related discussion: http://lists.openstack.org/pipermail/openstack-dev/2013-October/016876.html

We don't really want to stick with pickle, but I don't think the work required to switch to the JsonSerializer (which is the Django default since 1.6) has been investigated yet.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/161117

[Matthias Runge (mrunge)]

Turns out, it's not that a brilliant idea to change this right now.

[OpenStack Infra (hudson-openstack)]

Change abandoned by Ivan Kolodyazhny (<email address hidden>) on branch: master
Review: https://review.openstack.org/574310
Reason: This review is > 4 months without comment, and failed Jenkins the last time it was checked. We are abandoning this for now. Feel free to reactivate the review by pressing the restore button and leaving a 'recheck' comment to get fresh test results.