Comment 9 for bug 1395721

Devstack installs oslo_messaging library from pip. The package from pip doesn't reflect the actual master branch of github. This is why you cannot make it work.

There's a critical bug fix that just merged in the upstream to make redis work [1]. I think it has not been released yet.

[1] https://github.com/openstack/oslo.messaging/commit/bd52d08efaa608244254a801c9737a0aed7434e0