Let me test this also, on clean 4.11.2 RC5... (KVM)
On Mon, 19 Nov 2018 at 18:47, Dag Sonstebo <dag.sonst...@shapeblue.com> wrote: > Andrija - not sure about your 3.4GHz cores - must a be a simplified lookup > somewhere making assumptions. > > Eric - have just tried your scenario in my 4.11.2RC5 lab (admittedly with > VMware, not KVM) - and I can see my core allocation keeps going up, e.g. at > the moment it sits at 166% - 10 out of 6 cores used. However it doesn't > stop me starting new VMs (only using 30-40% CPU and memory). > Are you sure it's the core count preventing you from starting VMs? What do > the logs say? (Also keep in mind your system VMs are now using more > resources that before). > > Regards, > Dag Sonstebo > Cloud Architect > ShapeBlue > > > On 19/11/2018, 17:15, "Eric Lee Green" <eric.lee.gr...@gmail.com> wrote: > > > On 11/19/18 03:56, Andrija Panic wrote: > > Hi Ugo, > > > > Why would you want to do this, just curious ? > > > > I believe it's not possible, but anyway (at least with KVM, probably > same > > for other hypervisors) it doesn't even makes sense/use, since when > > deploying a VM, ACS query host free/unused number of MHz (GHz), so > it's not > > even relevant for ACS - number of cores in not relevant in ACS > calculations > > during VM deployment. > > > I think you are misunderstanding the question. I have 72 cores in my > cluster. Each of my hosts has 24 cores. With 4.9.2, I can provision 10 > virtual machines, each of which is programmed with 8 cores, meaning 80 > cores total. They on average are using only 25% of the CPU available > to > them (they need to be able to burst) and my compute servers on average > are only 40% CPU used so that is not a problem. > > When I tried upgrading to 4.11.1, the dashboard showed a new value "# > of CPU Cores" in red and showed that I had more cores provisioned for > virtual machines than available in the cluster (80 versus 72 > available). > Cloudstack would not launch new virtual machines. I shut down two > virtual machines, and now I can launch one, but not the second because > I > would need 80 cores total in my cluster. I cannot launch all 10 > virtual > machines because I would need 80 cores total. I know this because I > tried it. I then used MySQL to tell Cloudstack that each of my hosts > has > 48 cores (144 total), and suddenly I can launch all of my virtual > machines. > > Is this a bug in 4.11.1? Or is this expected behavior? If expected > behavior, is there a way to over-provision "total # of cores used" > other > than to go into MySQL and tell it that my hosts have more cores than > they in fact have? (Note that my service offerings are limited to 8 > cores max, so there's no way to launch a single VM with more cores > than > exists on a physical host, since all my hosts have 24 cores). > > > > On Mon, Nov 19, 2018, 11:31 Ugo Vasi <ugo.v...@procne.it.invalid > wrote: > > > >> Hi all, > >> in the dashboard of an ACS installation vesion 4.11.1.0 (Ubuntu > 16.04 > >> with KVM hypervisor), the new entry "# of CPU Cores" appears. > >> Is it possible to over-provision like for MHz or storage? > >> > >> Thanks > >> > >> > >> -- > >> > >> *Ugo Vasi* / System Administrator > >> ugo.v...@procne.it <mailto:ugo.v...@procne.it> > >> > >> > >> > >> > >> *Procne S.r.l.* > >> +39 0432 486 523 > >> via Cotonificio, 45 > >> 33010 Tavagnacco (UD) > >> www.procne.it <http://www.procne.it/> > >> > >> > >> Le informazioni contenute nella presente comunicazione ed i relativi > >> allegati possono essere riservate e sono, comunque, destinate > >> esclusivamente alle persone od alla Società sopraindicati. La > >> diffusione, distribuzione e/o copiatura del documento trasmesso da > parte > >> di qualsiasi soggetto diverso dal destinatario è proibita sia ai > sensi > >> dell'art. 616 c.p., che ai sensi del Decreto Legislativo n. 196/2003 > >> "Codice in materia di protezione dei dati personali". Se avete > ricevuto > >> questo messaggio per errore, vi preghiamo di distruggerlo e di > informare > >> immediatamente Procne S.r.l. scrivendo all' indirizzo e-mail > >> i...@procne.it <mailto:i...@procne.it>. > >> > >> > > > > dag.sonst...@shapeblue.com > www.shapeblue.com > Amadeus House, Floral Street, London WC2E 9DPUK > @shapeblue > > > > -- Andrija Panić
