Open Stack

On Mon, Apr 28, 2014 at 9:19 AM, Oleg Bondarev <obondarev at mirantis.com> wrote:
> On Mon, Apr 28, 2014 at 6:01 PM, Kyle Mestery <mestery at noironetworks.com>
> wrote:
>>
>> On Mon, Apr 28, 2014 at 8:54 AM, Oleg Bondarev <obondarev at mirantis.com>
>> wrote:
>> > Yeah, I also saw in docs that update-device is supported since 0.8.0
>> > version,
>> > not sure why it didn't work in my setup.
>> > I installed latest libvirt 1.2.3 and now update-device works just fine
>> > and I
>> > am able
>> > to move instance tap device from one bridge to another with no downtime
>> > and
>> > no reboot!
>> > I'll try to investigate why it didn't work on 0.9.8 and which is the
>> > minimal
>> > libvirt version for this.
>> >
>> Wow, cool! This is really good news. Thanks for driving this! By
>> chance did you notice if there was a drop in connectivity at all, or
>> if the guest detected the move at all?
>
>
> Didn't check it yet. What in your opinion would be the best way of testing
> this?
>
The simplest way would to have a ping running when you run
"update-device" and see if any packets are dropped. We can do more
thorough testing after that, but that would give us a good
approximation of connectivity while swapping the underlying device.

>> Kyle
>>
>> > Thanks,
>> > Oleg
>> >
>> >
>> > On Sat, Apr 26, 2014 at 5:46 AM, Kyle Mestery
>> > <mestery at noironetworks.com>
>> > wrote:
>> >>
>> >> According to this page [1], "update-device" is supported from libvirt
>> >> 0.8.0 onwards. So in theory, this should be working with your 0.9.8
>> >> version you have. If you continue to hit issues here Oleg, I'd suggest
>> >> sending an email to the libvirt mailing list with the specifics of the
>> >> problem. I've found in the past there are lots of very helpful on that
>> >> mailing list.
>> >>
>> >> Thanks,
>> >> Kyle
>> >>
>> >> [1]
>> >> http://libvirt.org/sources/virshcmdref/html-single/#sect-update-device
>> >>
>> >> On Thu, Apr 24, 2014 at 7:42 AM, Oleg Bondarev <obondarev at mirantis.com>
>> >> wrote:
>> >> > So here is the etherpad for the migration discussion:
>> >> > https://etherpad.openstack.org/p/novanet-neutron-migration
>> >> > I've also filed a design session on this:
>> >> > http://summit.openstack.org/cfp/details/374
>> >> >
>> >> > Currently I'm still struggling with instance vNic update, trying to
>> >> > move
>> >> > it
>> >> > from one bridge to another.
>> >> > Tried the following on ubuntu 12.04 with libvirt 0.9.8:
>> >> >
>> >> >
>> >> > https://access.redhat.com/site/documentation/en-US/Red_Hat_Enterprise_Linux/6/html/Virtualization_Administration_Guide/sect-dynamic-vNIC.html
>> >> > virsh update-device shows success but nothing actually changes in the
>> >> > instance interface config.
>> >> > Going to try this with later libvirt version.
>> >> >
>> >> > Thanks,
>> >> > Oleg
>> >> >
>> >> >
>> >> >
>> >> > On Wed, Apr 23, 2014 at 3:24 PM, Rossella Sblendido
>> >> > <rsblendido at suse.com>
>> >> > wrote:
>> >> >>
>> >> >>
>> >> >> Very interesting topic!
>> >> >> +1 Salvatore
>> >> >>
>> >> >> It would be nice to have an etherpad to share the information and
>> >> >> organize
>> >> >> a plan. This way it would be easier for interested people  to join.
>> >> >>
>> >> >> Rossella
>> >> >>
>> >> >>
>> >> >> On 04/23/2014 12:57 AM, Salvatore Orlando wrote:
>> >> >>
>> >> >> It's great to see that there is activity on the launchpad blueprint
>> >> >> as
>> >> >> well.
>> >> >> From what I heard Oleg should have already translated the various
>> >> >> discussion into a list of functional requirements (or something like
>> >> >> that).
>> >> >>
>> >> >> If that is correct, it might be a good idea to share them with
>> >> >> relevant
>> >> >> stakeholders (operators and developers), define an actionable plan
>> >> >> for
>> >> >> Juno,
>> >> >> and then distribute tasks.
>> >> >> It would be a shame if it turns out several contributors are working
>> >> >> on
>> >> >> this topic independently.
>> >> >>
>> >> >> Salvatore
>> >> >>
>> >> >>
>> >> >> On 22 April 2014 16:27, Jesse Pretorius <jesse.pretorius at gmail.com>
>> >> >> wrote:
>> >> >>>
>> >> >>> On 22 April 2014 14:58, Salvatore Orlando <sorlando at nicira.com>
>> >> >>> wrote:
>> >> >>>>
>> >> >>>> From previous requirements discussions,
>> >> >>>
>> >> >>>
>> >> >>> There's a track record of discussions on the whiteboard here:
>> >> >>>
>> >> >>> https://blueprints.launchpad.net/neutron/+spec/nova-to-quantum-upgrade
>> >> >>>
>> >> >>> _______________________________________________
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>> >> >>> OpenStack-dev at lists.openstack.org
>> >> >>> http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-dev
>> >> >>>
>> >> >>
>> >> >>
>> >> >>
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>> >> >>
>> >> >>
>> >> >>
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>> >> >>
>> >> >
>> >> >
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>> >> >
>> >>
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>> >
>> >
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