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Sources and destinations are both ubuntu 10.04.3 LTS server and
ubuntu 10.04.4 LTS server up-to-date. I am using kvm on both source
and destination and libvirt. The details are:<br>
<br>
$ virsh version<br>
Compiled against library: libvir 0.9.11<br>
Using library: libvir 0.9.11<br>
Using API: QEMU 0.9.11<br>
Running hypervisor: QEMU 1.0.0<br>
<br>
The VMs are stored into their local filesystem, that is why I am
doing offline migration.<br>
<br>
When I was using the stock libvir and qemu-kvm (from the ubuntu
repositories) the offline migration was always failing. Even by hand
(using virsh commands and copying the files by hand).<br>
<br>
Once updated libvir and qemu-kvm, offline migration fails 30-40% of
times (estimated).<br>
<br>
Sources and destinations are Intel, biprocessors, quadcore.<br>
<br>
<br>
El 04/05/12 05:02, Shankhadeep Shome escribió:
<blockquote
cite="mid:CAOK6JGY2STLkYEMgixaByX+TN9u3AS2w33kM41H+A7HHUoY=6Q@mail.gmail.com"
type="cite">I have done a lot of migrations with VMs on Ubuntu,
first give some information about your source and destination,
your storage back end, architecture type, the source and
destination host versions etc. Are you running the same version of
kvm,xen,libvirt on both sides? Post as much as you can about the
source and sink. <br>
<br>
<div class="gmail_quote">On Thu, May 3, 2012 at 10:06 AM, Javier
Fontan <span dir="ltr"><<a moz-do-not-send="true"
href="mailto:jfontan@opennebula.org" target="_blank">jfontan@opennebula.org</a>></span>
wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0
.8ex;border-left:1px #ccc solid;padding-left:1ex">
I don't really know what could be happening with those
machines. If<br>
this problem only happens on > 10.04 VMs then it looks like
a change<br>
in the distribution that makes the VM behave like that. I
would also<br>
try stop/resume (that does the same steps as migration) and
check if<br>
the same problem arises. You can also do the stop/resume test
with the<br>
scheduler stopped and use onevm deploy to schedule the VM to
the same<br>
host, this way we can check if the problem is related to some<br>
configuration changes between physical nodes.<br>
<div class="HOEnZb">
<div class="h5"><br>
On Thu, Apr 26, 2012 at 10:04 AM, Carlos A. <<a
moz-do-not-send="true" href="mailto:caralla@upv.es">caralla@upv.es</a>>
wrote:<br>
> Hi,<br>
><br>
> I am experiencing some problems when migrating ubuntu
based VMs between<br>
> hosts. The problem appeared when trying to migrate
one ubuntu 11.04 server<br>
> VM. Previous versions of ubuntu (e.g. 10.04) were not
affected by this<br>
> problem.<br>
><br>
> The VM is successfully deployed and it works
properly. If I suspend the VM<br>
> and resume it, there is no problem. But if I migrate
the VM (which ONE<br>
> translates into suspending the VM, copying the files
to the destination host<br>
> and restoring the VM), the VM results useless.<br>
><br>
> There appear a lot of errors in the VM, some
processes (mainly related to<br>
> network) are tainted, etc. The problem also appears
when migrating a ubuntu<br>
> 12.04b.<br>
><br>
> Has anyone faced this issue? Has anyone some tip to
solve it? (I have tried<br>
> to deactivate acpi as an option to the kernel, but it
didn't helped at all).<br>
><br>
> Thank you in advance.<br>
><br>
> Regards,<br>
> Carlos A.<br>
><br>
> _______________________________________________<br>
> Users mailing list<br>
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<br>
<br>
<br>
</div>
</div>
<span class="HOEnZb"><font color="#888888">--<br>
Javier Fontán Muiños<br>
Project Engineer<br>
OpenNebula - The Open Source Toolkit for Data Center
Virtualization<br>
<a moz-do-not-send="true" href="http://www.OpenNebula.org"
target="_blank">www.OpenNebula.org</a> | <a
moz-do-not-send="true"
href="mailto:jfontan@opennebula.org">jfontan@opennebula.org</a> |
@OpenNebula<br>
</font></span>
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