Re: [Engine-devel] cluster emulation mode feature

----- Original Message ----- > From: "Roy Golan" <rgolan(a)redhat.com&gt; > Cc: engine-devel(a)ovirt.org > Sent: Sunday, June 9, 2013 8:56:45 AM > Subject: Re: [Engine-devel] cluster emulation mode feature > > On 06/08/2013 10:33 PM, Itamar Heim wrote: > > On 06/06/2013 08:17 AM, Roy Golan wrote: > >> Hi, > >> > >> A new wiki has been published on Cluster Emulation mode > >> http://www.ovirt.org/Cluster_emulation_modes > >> > >> Please review. > >> > >> Thanks, > >> Roy > >> _______________________________________________ > >> Engine-devel mailing list > >> Engine-devel(a)ovirt.org > >> http://lists.ovirt.org/mailman/listinfo/engine-devel > > > > strange, I thought the EmulatedMachine config value we currently have > > was also used to validate host support, but seems we were missing that > > part. > > I was also puzzled while doing git grep -i emulatedmachine > > > > > what will happen with the current EmulatedMachine config value? > > The OVF builder will use the cluster config and EmulatedMachine will be > deleted > > > > > what happens when cluster emulation mode changes to hosts not matching > > it? > > Updating cluster's emulation mode is prohibited when active hosts has > running VMs. > if VMs are not running on them they will transit to non-op on the next > refresh > the emulated machines are reported on getCaps, not getStats, so not sure what refresh you refer to, anyway i think we should allow if no vms running but all active hosts support new value and block otherwise (if vms are running or one of the active hosts doesn't support new value) iirc this is the logic for changing cpu type

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