[openstack-dev] [neutron] Neutron rolling upgrade - are we there yet?

Dan Smith dms at danplanet.com
Wed Oct 14 18:27:11 UTC 2015

> I would like to gather all upgrade activities in Neutron in one place,
> in order to summarizes the current status and future activities on
> rolling upgrades in Mitaka.

Glad to see this work really picking up steam in other projects!

> b.      TODO: To have the rolling upgrade we have to implement the RPC
> version pinning in conf.
>         i.     I’m not a big
>         fan of this solution, but we can work out better idea if needed.

I'll just point to this:


and if you go check the logs for the partial-ncpu job, you'll see
something like this:

  nova.compute.rpcapi  Automatically selected compute RPC version 4.5
from minimum service version 2

I think that some amount of RPC pinning is probably going to be required
for most people in most places, given our current model. But I assume
the concern is around requiring this to be a manual task the operators
have to manage. The above patch is the first step towards nova removing
this as something the operators have to know anything about.


More information about the OpenStack-dev mailing list