[virt-tools-list] C'ant migrate with virt-manager or virsh

[Bruno Lamps]

Hi,

I configured hostname and domainname for both systems, and added both to
eachother's /etc/hosts. Hostname and /etc/hosts of systems should look like
this?

[root at cluster ~]# hostname
cluster.pisolar
[root at cluster ~]# cat /etc/hosts
127.0.0.1    cluster    localhost.localdomain    localhost    localhost4
::1    cluster    localhost6.localdomain6    localhost6
192.168.0.67 fedorao.pisolar fedorao

AND


[root at fedorao ~]# hostname
fedorao.pisolar
[root at fedorao ~]# cat /etc/hosts
127.0.0.1    localhost.localdomain    localhost    localhost4
::1    localhost6.localdomain6    localhost6
192.168.1.4 cluster.pisolar cluster


(cluster has ip 192.168.1.4 and fedorao has ip 192.168.0.67)

I also created a directory /media/nfs067 in machine fedorao.pisolar, shared
it with cluster.pisolar using nfs, and mounted it in /media/nfs067, in case
different paths be a problem to virsh and virt-manager. =D

Then I created a VM with disk in /media/067 and tried to live migrate it
with virt-manager 0.8.6. Got this error message:

Unable to migrate guest: operation failed: Migration unexpectedly failed
> Unable to migrate guest: operation failed: Migration unexpectedly failed
> Traceback (most recent call last):
>   File "/usr/local/share/virt-manager/virtManager/asyncjob.py", line 45, in
> cb_wrapper
>     callback(asyncjob, *args, **kwargs)
>   File "/usr/local/share/virt-manager/virtManager/migrate.py", line 523, in
> _async_migrate
>     vm.migrate(dstconn, migrate_uri, rate, live, secure, meter=meter)
>   File "/usr/local/share/virt-manager/virtManager/domain.py", line 1141, in
> migrate
>     self._backend.migrate(destconn.vmm, flags, newname, interface, rate)
>   File "/usr/lib64/python2.7/site-packages/libvirt.py", line 518, in
> migrate
>     if ret is None:raise libvirtError('virDomainMigrate() failed',
> dom=self)
> libvirtError: operation failed: Migration unexpectedly failed
>

Using virsh, I get the same error:

[root at fedorao ~]# virsh migrate --live lol qemu+ssh://192.168.1.4/system
root at 192.168.1.4's password:
erro:operation failed: Migration unexpectedly failed


I'm feeling a bit lost right now. =/


On Wed, Feb 2, 2011 at 10:14 AM, Daniel P. Berrange <berrange at redhat.com>wrote:

> On Wed, Feb 02, 2011 at 09:25:47AM -0300, Bruno Lamps wrote:
> > Updating the thread:
> >
> > I was using fedora 13 (kernel 2.6.32) in one machine and fedora 14
> (kernel
> > 2.6.35) in other, so I made a fresh install in the first machina, so now
> > it's running fedora 14 with 2.6.35 x64 kernel, same as the second
> machine.
> >
> > Now when I try to migrate a VM through virt-manager, the following
> message
> > appears:
> >
> > Erro ao receber a validação de entrada: [Errno -2] Nome ou serviço
> > > desconhecido
> > > Traceback (most recent call last):
> > >   File "/usr/local/share/virt-manager/virtManager/migrate.py", line
> 423, in
> > > finish
> > >     dsthost = destconn.get_qualified_hostname()
> > >   File "/usr/local/share/virt-manager/virtManager/connection.py", line
> 342,
> > > in get_qualified_hostname
> > >     return gethostbyaddr(gethostname())[0]
> > > gaierror: [Errno -2] Nome ou serviço desconhecido
> > >
> >
> > In english, this error means something like "error receiving validation
> for
> > input: Error n 2 Unknown name or service. Traceback blablabla...
>
> This suggests something is mis-configured in either DNS, or /etc/hosts
> or the OS hostname or a mix
>
> You need the configured 'hostname' to correctly resolve either via DNS
> or an /etc/hosts entry or both, and for it to point to a public IP of
> the machine, not 127.0.0.1
>
> Daniel
> --
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