[Users] ovirt 3.3.1 all VMs boot on the same host?

Doron Fediuck dfediuck at redhat.com
Mon Nov 25 15:50:47 UTC 2013

----- Original Message -----
> From: "Gianluca Cecchi" <gianluca.cecchi at gmail.com>
> To: "users" <users at ovirt.org>
> Sent: Monday, November 25, 2013 3:40:03 PM
> Subject: [Users] ovirt 3.3.1 all VMs boot on the same host?
> Hello,
> I have a cluster of 2 hosts with f19 and 3.3.1 as delivered in ovirt
> stable repo.
> Running kernel is 3.11.8-200.fc19.x86_64
> $ rpm -q ksm libvirt qemu-kvm vdsm
> package ksm is not installed
> libvirt-
> qemu-kvm-1.4.2-13.fc19.x86_64
> vdsm-4.13.0-11.fc19.x86_64
> Engine is another server, always with f19 and ovirt stable 3.3.1.
> I have a GlusterFS DC with a cluster composed by these two hosts.
> They are HP blades BL685c G1 with 64Gb of ram each and 4xOpteron CPUs,
> seen by oVirt as "AMD Opteron G2" in datacenter.
> I have 3 VMs in this cluster: 2 x CentOS 6.4 and 1 x CentOS 5.10.
> After I put all in maintenance and then start up. I have both hosts up
> and running.
> I power on in sequence the 3 VMs and they start all on the same host
> (the one that is not the elected SPM).
> Should it be some sort of load balancing or is this situation
> correct/expected?
> I notice ksm is not installed: could it be this one the reason in any
> way? Or culd it be useful anyway to install it (I thought it was a
> dependency for oVirt...)
> $ rpm -qa|grep ksm
> [g.cecchi ]$
> BTW: if I run a live migration of CentOS 5.10 VM to the other host it
> works ok without problem, so the host seems ok to me.
> All 3 VMs are configured as servers and as "run on any host in cluster"
> Thanks in advance,
> Gianluca

Hi Gianluca,
KSM comes with qemu-kvm, so no point of looking for it as an rpm:
# rpm -ql qemu-kvm | grep ksm

As for the actual issue, which cluster policy are you using now?
See the attached to illustrate what I'm referring to.
-------------- next part --------------
A non-text attachment was scrubbed...
Name: cluster-policy.png
Type: image/png
Size: 35872 bytes
Desc: not available
URL: <http://lists.ovirt.org/pipermail/users/attachments/20131125/a1a891d1/attachment-0001.png>

More information about the Users mailing list