Open Stack

On 11 June 2015 at 12:37, Richard Raseley <richard at raseley.com> wrote:

> Andrew Laski wrote:
>
>> There are many reasons a deployer may want to live-migrate instances
>> around: capacity planning, security patching, noisy neighbors, host
>> maintenance, etc... and I just don't think the user needs to know or
>> care that it has taken place.
>>
>
> They might care, insofar as live migrations will often cause performance
> degradation from a users perspective.
>

Seconded.  If your app manager is warned that you're going to be live
migrating it can do something about the capacity drop.  I can imagine cases
where a migrating VM would be brutally murdered [1] and replaced because
it's not delivering sufficient performance.
-- 
Ian.

[1] See "nova help brutally-murder"
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.openstack.org/pipermail/openstack-dev/attachments/20150611/97704cd7/attachment.html>