[ovirt-users] questions about migrating to self-hosted engine from bare-metal

[Simone Tiraboschi]

On Tue, Feb 14, 2017 at 2:36 PM, cmc <iucounu at gmail.com> wrote:

> Hi Simone,
>
> >>
> >
> > It fails due to this one:
> > 2017-02-13 13:07:45,812 ERROR (vm/642a0b9a) [virt.vm]
> > (vmId='642a0b9a-49fc-4ccc-8976-f6685953d0e8') The vm start process
> failed
> > (vm:616)
> > Traceback (most recent call last):
> >   File "/usr/share/vdsm/virt/vm.py", line 552, in _startUnderlyingVm
> >     self._run()
> >   File "/usr/share/vdsm/virt/vm.py", line 1994, in _run
> >     self._connection.createXML(domxml, flags),
> >   File "/usr/lib/python2.7/site-packages/vdsm/libvirtconnection.py",
> line
> > 123, in wrapper
> >     ret = f(*args, **kwargs)
> >   File "/usr/lib/python2.7/site-packages/vdsm/utils.py", line 941, in
> > wrapper
> >     return func(inst, *args, **kwargs)
> >   File "/usr/lib64/python2.7/site-packages/libvirt.py", line 3782, in
> > createXML
> >     if ret is None:raise libvirtError('virDomainCreateXML() failed',
> > conn=self)
> > libvirtError: invalid argument: could not find capabilities for
> arch=x86_64
> > domaintype=kvm
> > 2017-02-13 13:07:45,852 INFO  (vm/642a0b9a) [virt.vm]
> > (vmId='642a0b9a-49fc-4ccc-8976-f6685953d0e8') Changed state to Down:
> invalid
> > argument: could not find capabilities for arch=x86_64 domaintype=kvm
> > (code=1) (vm:1199)
> >
> > Is your CPU properly configured for virtualization? Are you running on a
> > nested env?
> >
>
> Yes, I assume it should be configured for virtualisation, since this
> VM I'm creating to replace the bare-metal engine is running on one of
> the two hosts that make up the cluster, and host 30 other running VMs
> currently. Should it not run on the same cluster perhaps?
>
> My steps are:
>
> 1. Create a VM on the cluster. Install the ovirt release rpm, install
> the packages ovirt-hosted-engine-setup and ovirt-engine-appliance
> 2. run hosted-engine --deploy
>
> ...and that is as far as I have gotten so far.
>

OK, a bit of confusion here:
ovirt-hosted-engine-setup is going to create a VM for you based on
ovirt-engine-appliance (with the engine).
If you manually create a VM (L1) on your physical host (L0) to run
hosted-engine-setup there, hosted-engine-setup will create a VM (L2) for
the engine running inside the L1 VM and this requires nested virtualization
support which I think it's not enabled by default on oVirt hosts.
But the point is that you simply have to run ovirt-hosted-engine-setup on
your physical host and not on a VM otherwise all the HA mechanism of
hosted-engine will make no sense if nothing is bringing up your virtual
hosts for you.

hosted-engine-setup requires an host with no others running VMs so, if it's
already managed my an engine, move it to maintenance and remove it from
your cluster.



>
> Thanks,
>
> Cam
>
> >
> >>
> >> Thanks,
> >>
> >> Cam
> >>
> >>
> >> On Mon, Feb 13, 2017 at 6:22 PM, Yaniv Kaul <ykaul at redhat.com> wrote:
> >> >
> >> > On Mon, Feb 13, 2017 at 6:26 PM, cmc <iucounu at gmail.com> wrote:
> >> >>
> >> >>
> >> >>
> >> >> /var/log/ovirt-hosted-engine-setup/ovirt-hosted-engine-
> setup-20170213141937-0wgc31.log
> >> >
> >> >
> >> > Anything in the above log?
> >> > Y.
> >> >
> >>
> >> _______________________________________________
> >> Users mailing list
> >> Users at ovirt.org
> >> http://lists.ovirt.org/mailman/listinfo/users
> >>
> >
>
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