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Hi Irena,

I do apologise for not having been more clear.
I was wondering if you are planning to extend the Quantum API, besides the
module that interfaces nova to quantum, in order to accomodate migration
events.
At a first glance, I believe this process could be entirely managed using
the existing Quantum API, but I have not explored the problem in detail, so
I might be missing something.

Salvatore

On 30 October 2012 09:20, Irena Berezovsky <irenab at mellanox.com> wrote:

>  Moving the ongoing discussion to the openstack-dev mailing list****
>
> ** **
>
> Salvatore,****
>
> Thank you for comments. ****
>
> I would like to add additional methods to quantum API corresponding the VM
> migration methods defined at nova/network/api. ****
>
> I am not sure what do you mean by server side calls to quantum.****
>
> Just to be sure how to proceed, shall we create the blueprint for this
> task? ****
>
> ** **
>
> Regards,****
>
> Irena****
>
> ** **
>
> On 30 October 2012 08:16, Salvatore Orlando <sorlando at nicira.com> wrote:**
> **
>
> Hi Irena,****
>
> ** **
>
> I am afraid you're correct. VM migration events were not addressed in the
> nova-quantum api for Folsom.****
>
> We definitely want to add those calls - and help would be extremely
> appreciated.****
>
> ** **
>
> I think the nova-to-quantum API was mostly implemented by Yong - with some
> contribution from Dan, me, and other Quantum devs. ****
>
> ** **
>
> Are you planning to add also server-side calls to Quantum for migration
> awareness?****
>
> ** **
>
> Salvatore****
>
> ** **
>
> ** **
>
> On 30 October 2012 08:13, Irena Berezovsky <irenab at mellanox.com> wrote:***
> *
>
> Hi guys,
> I have troubles to follow the flow of events in case of VMlive migration.
> Can I ask  you for clarifications?
> What I see from the code is that there is no additions to  Quantum API for
> migration awareness.
> At
> https://github.com/openstack/nova/blob/master/nova/network/quantumv2/api.pythere is just empty implementation.
> Is there an intension to add Quantum API calls for live migration? Is it
> only nova related actions? Is some help needed?
>
> I am looking for a way to be aware of live migration at quantum plugin
> (due to the need to configure physical server that attached to the host
> that hosts VM).
> Thanks a lot,
> Irena****
>
>
>
> -----Original Message-----
> From: Gary Kotton [mailto:gkotton at redhat.com]
> Sent: Sunday, October 28, 2012 10:34 AM
> To: Irena Berezovsky****
>
> Cc: Dan Wendlandt; Salvatore Orlando
> Subject: Re: Quantum awareness to VM live migration event
>
> On 10/28/2012 10:27 AM, Irena Berezovsky wrote:
> > Hi Dan,
> > Thank you very much for your response.
> > Salvatore, Gary may I ask few questions regarding this  change?
> > 1. Is there some blueprint covering support for VM migration calls to
> quantum API (data passed by nova) and DB model changes (if any)?
>
> Not that I am aware of
> > 2. Is there some description of VM migration  flow from nova perspective?
>
> Ditto
> > 3. Is it part of Folsom release?
>
> Yes, this should be supported and working.
> > 4. Does it handle case when VM Migration fails?
>
> I would hope so.
> > 5. As far as I understand,  in migrate_instance_finish there is a 'dest
> ' attribute. I believe its destination Physical host UUID. In
> migrate_instance_start there is a 'host' attribute. Is it source Physical
> Host UUID?
>
> I am not familiar with this.
> >
> > Thank you in advance,
> > Irena
> >
> >
> > -----Original Message-----
> > From: Dan Wendlandt [mailto:dan at nicira.com]
> > Sent: Saturday, October 27, 2012 2:46 AM
> > To: Irena Berezovsky
> > Cc: Salvatore Orlando; Gary Kotton
> > Subject: Re: Quantum awareness to VM live migration event
> >
> > Hi Irena,
> >
> > Sorry, just now starting to catch up on email post-summit.
> >
> > I'm CC'ing Salvatore and Gary, as they are also involved in this, I
> believe.
> >
> > Salvatore was involved with discussions with Vish and the Nova team
> around the addition of migration hooks to the network api within nova,
> > see:
> https://github.com/openstack/nova/blob/master/nova/network/api.py#L337
> >
> > Gary's talk on the summit also touches on this, and would likely add the
> admin calls to the Quantum API that indicate that a port is about to be
> provisioned on a particular physical host (this would probably be sent to
> quantum from nova when a VM is started/stopped, or migrated.
> >
> > Dan
> >
> >
> >
> >
> > On Mon, Oct 15, 2012 at 11:01 AM, Irena Berezovsky<irenab at mellanox.com>
>  wrote:
> >> Dan,
> >> Continuing our talk today, please let me know if there is some work
> about Quantum awareness to VM live migration event (before and after on
> source and destination nodes).
> >>
> >> I would lie to be part of it,
> >>
> >> Thanks,
> >> Irena
> >
> >
> > --
> > ~~~~~~~~~~~~~~~~~~~~~~~~~~~
> > Dan Wendlandt
> > Nicira, Inc: www.nicira.com
> > twitter: danwendlandt
> > ~~~~~~~~~~~~~~~~~~~~~~~~~~~****
>
> ** **
>
> ** **
>
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