Open Stack

Hello everyone,

An issue came up recently:
http://lists.openstack.org/pipermail/openstack-dev/2015-March/058280.html

Where a recent Kilo patch made non-backwards compatible to the RPC interface
between the Neutron server and its agents. I'm trying to figure out how much
of an issue that really is.

The question is: Does anyone have any experience with performing a 'rolling upgrade'
for Neutron, specifically, upgrading the Neutron API server(s) first, and upgrading
Neutron agents later? Has anyone performed this from Icehouse to Juno successfully?
Would this typically work across the board for other services as well?

Thank you.


Assaf Muller, Cloud Networking Engineer
Red Hat