On Wed, Nov 23, 2016 at 02:56:52PM -0500, Russell Bryant wrote:
> On Wed, Nov 23, 2016 at 1:25 AM, Babu Shanmugam <[email protected]> wrote:
> 
> >
> >
> > On Wednesday 23 November 2016 04:01 AM, Ben Pfaff wrote:
> >
> >> On Tue, Nov 15, 2016 at 05:27:22PM +0530, [email protected] wrote:
> >>
> >>> From: Babu Shanmugam <[email protected]>
> >>>
> >>> Openstack compute manager uses FQDN to check for the hypervisors to
> >>> which the ports are bound.
> >>>
> >>> Without this fix, no instances can be launched as the hypervisor's
> >>> hostname
> >>> mismatches.
> >>>
> >>> Signed-off-by: Babu Shanmugam <[email protected]>
> >>>
> >> Can you document in vswitch.xml that this is a fully qualified domain
> >> name, and that before OVS 2.7 it was not fully qualified?  (Or, before
> >> 2.6.2, if you want it backported?)
> >>
> >
> > Sure, Ben
> 
> 
> I think it should be backported as well.
> 
> 
> >
> >
> > Also, there is some possibility that some installations relied on this
> >> being non-fully-qualified, and if we get bug reports about that change
> >> then we'd probably have to revert it.
> >>
> >
> > I understand.
> 
> 
> This current patch certainly makes things easier on the Neutron OVN driver,
> so with that hat on I like this change.  :-)
> 
> With my OVS maintainer hat on, I'm worried about breaking people, like Ben
> said.  Since this was such a recent addition (new in 2.6), maybe nobody
> else is relying on it yet.  We can hope for that!

I think that it's likely to be fine.

> If anyone complains, we could just add a new external-id called "fqdn" or
> something, but that would also require changes to ovn-controller to expose
> that via the chassis record and some changes to the Neutron OVN driver to
> make use of the new field.

That's an idea too.
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