On Wed, Sep 19, 2012 at 1:14 PM, Day, Phil <[email protected]> wrote:
> Thanks Joe,**** > > ** ** > > I was anticipating something more complex to be able to say when an > aggregate should or shouldn’t be linked to the hypevisor and overlooked the > obvious. **** > > ** ** > > So just to make sure I’ve got it – on libvirt systems an aggregate can be > used for anything (because of the NoOp in the driver), but on xen systems > it’s still liked to the hypervisor pools ? > Libvirt can be used for anything. And Xen can be a xen hypervisor pool or anything depending on the aggregate metadata ( https://github.com/openstack/nova/blob/master/nova/virt/xenapi/pool.py#L80 https://github.com/openstack/nova/blob/master/nova/virt/xenapi/pool_states.py ) > **** > > ** ** > > Thanks**** > > Phil**** > > ** ** > > *From:* Joe Gordon [mailto:[email protected]] > *Sent:* 19 September 2012 19:02 > *To:* Day, Phil > *Cc:* [email protected] ([email protected]) ( > [email protected]) > *Subject:* Re: [Openstack] Generalsied host aggregates in Folsom**** > > ** ** > > ** ** > > On Wed, Sep 19, 2012 at 10:18 AM, Day, Phil <[email protected]> wrote:**** > > Hi Folks,**** > > **** > > Trying to catch-up (I’m thinking of changing my middle name to catch-up J > ) with the generalisation of host aggregates – and looking at the code it > looks to me as if the chain for adding a host to an aggregate still ends up > calling the virt layer **** > > **** > > api/openstack/compute/contrib/aggregates/AggregateController/action()**** > > compute/api/AggregateAPI/add_host_to_aggregate()**** > > <RPC>**** > > compute/manager/add_aggregate_host()**** > > virt/add_to_aggregate()**** > > **** > > I thought the change was to be able to create aggregates that can be > linked to a hypervisor concept, but could also just be a way of “tagging” > hosts into pools for other scheduler reasons – am I missing somethign ?*** > * > > ** ** > > The RPC component is there to ensure XenAPI still works. In the libvirt > driver, add_to_aggregate() is a noop.**** > > ** ** > > So you can create an aggregate that can be linked to a hypervisor but also > as a way to tag hosts**** > > ** ** > > **** > > Thanks,**** > > Phil**** > > **** > > **** > > **** > > > _______________________________________________ > Mailing list: https://launchpad.net/~openstack > Post to : [email protected] > Unsubscribe : https://launchpad.net/~openstack > More help : https://help.launchpad.net/ListHelp**** > > ** ** >
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