Open Stack

On Tue, Aug 5, 2014 at 8:25 PM, Tom Fifield <tom at openstack.org> wrote:

> On 06/08/14 03:54, Jay Pipes wrote:
>
>> On 08/05/2014 03:23 PM, Collins, Sean wrote:
>>
>>> On Tue, Aug 05, 2014 at 12:50:45PM EDT, Monty Taylor wrote:
>>>
>>>> However, I think the cost to providing that path far outweighs
>>>> the benefit in the face of other things on our plate.
>>>>
>>>
>>> Perhaps those large operators that are hoping for a
>>> Nova-Network->Neutron zero-downtime live migration, could dedicate
>>> resources to this requirement? It is my direct experience that features
>>> that are important to a large organization will require resources
>>> from that very organization to be completed.
>>>
>>
>> Indeed, that's partly why I called out Metacloud in the original post,
>> as they were brought up as a deployer with this potential need. Please,
>> if there are any other shops that:
>>
>> * Currently deploy nova-network
>> * Need to move to Neutron
>> * Their tenants cannot tolerate any downtime due to a cold migration
>>
>> Please do comment on this thread and speak up.
>>
>
> Just to chip in for the dozens of users I have personally spoken to that
> do have the requirement for nova-network to neutron migration, and would be
> adversely affected if it was not implemented prior to deprecating
> nova-network: raising this concept only on a development mailing list is a
> bad idea :)
>

The way I see it, a migration strategy shouldn't be required to make
neutron the recommended networking model in OpenStack (something that the
nova team is not comfortable saying today). But a migration strategy is
required for deprecating nova-network (starting the clock for a possible
removal date).  For deployers this comes down to two different questions:

* What networking model should be used in greenfield deployments?
* How do I migrate to the new networking solution?



> If anyone is serious about not providing a proper migration path for these
> users that need it, there is a need to be yelling this for probably a few
> of summits in a row and every OpenStack event we have in between, as well
> as the full gamut of periodic surveys, blogs, twitters, weibos, linkedins,
> facebooks etc,
>
>
> Regards,
>
>
> Tom
>
>
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