[openstack-dev] [Nova] Hypervisor Version Support

Andrew Laski andrew.laski at rackspace.com
Wed Aug 7 14:14:53 UTC 2013

On 08/07/13 at 07:38am, Kaushik Chandrashekar wrote:
>Hi All,
>We are working on adding hypervisors version support for xen,
>The initial design is,
>   1. The image would have a property with hypervisor version requirements,
>   in this format '>=6.0,<6.2'
>   2. The host state manager would have the hypervisor version loaded in
>   (6,0,1) format.
>   3. If the hypervisor versions are present in both of these, the
>   image_props_filter would filter hypervisors based on them.
>   https://review.openstack.org/#/c/36073/15/nova/scheduler/filters/image_props_filter.py
>We want to generalise this versioning for all hypervisors. So we are
>thinking of having "a.b.c.d" or (a, b, c ,d) as the version type where a,
>b, c, d are numbers. Do you see any hypervisors that have a different
>versioning format?

Why do you want to generalize the versioning for all hypervisors?  I'm 
not sure I see the benefit versus using the version as reported by the 
hypervisor.  Especially since you're looking to compare against non 
generalized versions based on your examples.


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