[libvirt-users] (no subject)

nidhi d nidhimol.d at gmail.com
Wed Mar 23 13:47:26 UTC 2016


I tried using tunnelled mode for vm migration, but migration failed with
the error

Permission denied(publickey,password):Connection reset by peer

I have enabled passwordless ssh login at the destination. Also i am able to
connect  to the destination using using qemu+ssh.

On Wed, Mar 23, 2016, 6:59 PM Michal Privoznik <mprivozn at redhat.com> wrote:

> On 23.03.2016 14:13, nidhi d wrote:
> > How is the traffic different when using the tunnelled option rather than
> > ssh without tunnelling?
>
> There are two migration streams here:
>
> 1) libvirt (used to transfer libvirt's internal state of domain onto the
> other side)
> 2) qemu (used to transfer qemu's internal state of domain onto the other
> side)
>
> specifying bare qemu+ssh:/// makes libvirt pack its stream into an ssh
> stream, but says nothing about qemu stream. Using tunnelling tells
> libvirt to encapsulate qemu migration stream into its own stream and
> thus into ssh stream too.
>
> Michal
>
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