[libvirt-users] libvirt migrate error

[zhijun liu]

2012/12/6 Eric Blake <eblake at redhat.com>

> On 12/05/2012 12:05 PM, zhijun liu wrote:
> > hi,all
> >
> > when I try to migrate `vm0` from (192.168.1.102) to another
> > host(192.168.1.200), the name `ubuntu1204` is 192.168.1.200's hostname.
> >
> > command is :
> >
> > `sudo virsh migrate  --live vm0 qemu+tcp://192.168.1.200/system`
> >
> > the error is : unable to connect to server at 'ubuntu1204:49157':
> > Connection refused.
>
> Indeed, when using native migration, you have to open a rather large
> range of ports that qemu might want to use.
>
>
> http://wiki.libvirt.org/page/FAQ#What_setup_is_required_for_QEMU.2FKVM_migration.3F
>
> >
> > however,when I try to virsh connect  to 192.168.1.200 by tcp is no
> problem.
>
> http://libvirt.org/migration.html gives more details on how to do live
> migration; in particular, you may want to try using --p2p to avoid
> having to open any ports for qemu.
>
> >
> > I dont know what the port 49157?how to fix it?
>
> Otherwise, figure out how to add open ports to your firewall; but as I'm
> not an Ubuntu user, I can't really say how to do that on your system.
>

thanks, Blake. when I using --p2p ,the problem still exsit.
at the same time,another question is why the content of  error  " unable to
connect to server at 'ubuntu1204:49157':" displayed hostname 'ubuntu1204'
instead of  ip '192.168.1.200'.   beause I try to ping hostname
`ubuntu1204` ,show `ping: unknown host ubuntu1204` ,only support ping `ip`.

>
> >
> > version:libvirt:0.9.8
> > system:ubuntu1204
> >
> > thanks in advance for any reply.
> >
>
> --
> Eric Blake   eblake redhat com    +1-919-301-3266
> Libvirt virtualization library http://libvirt.org
>
>
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