[Users] VM migrations failing

[Dead Horse]

Shu,
I build oVirt Engine and vdsm from source myself. The commits I indicated
are what I built from.I run the engine under FC17 and my nodes are running
EL6.x respectively.

Dan,
I reverted VDSM on my two test nodes to an earlier build of VDSM (commit:
c343e1833f7b6e5428dd90f14f7807dca1baa0b4)
VDSM after the above commit is broken due to commit:
fc3a44f71d2ef202cff18d7203b9e4165b546621 however when I built and tested
from master yesterday I did apply a patch I tested for
ybronhei which fixed that issue.

I will build VDSM from master, today w/ the supervdsm patch and try the
manual migration you indicated.

 - DHC



On Thu, Jan 31, 2013 at 4:56 AM, Dan Kenigsberg <danken at redhat.com> wrote:

> On Thu, Jan 31, 2013 at 11:08:58AM +0100, Martin Kletzander wrote:
> > On 01/31/2013 10:25 AM, Dan Kenigsberg wrote:
> > > On Thu, Jan 31, 2013 at 09:43:44AM +0100, Martin Kletzander wrote:
> > >> On 01/30/2013 08:40 PM, Dead Horse wrote:
> > >>> The nodes are EL6.3 based.
> > >>>
> > >>> Currently installed libvirt packages:
> > >>>
> > >>> libvirt-lock-sanlock-0.9.10-21.el6_3.8.x86_64
> > >>> libvirt-cim-0.6.1-3.el6.x86_64
> > >>> libvirt-0.9.10-21.el6_3.8.x86_64
> > >>> libvirt-python-0.9.10-21.el6_3.8.x86_64
> > >>> libvirt-client-0.9.10-21.el6_3.8.x86_64
> > >>>
> > >>> and qemu packages:
> > >>> qemu-kvm-0.12.1.2-2.295.el6_3.10.x86_64
> > >>> qemu-kvm-tools-0.12.1.2-2.295.el6_3.10.x86_64
> > >>> qemu-img-0.12.1.2-2.295.el6_3.10.x86_64
> > >>>
> > >>> Thus my presumption here given the above is that
> virDomainMigrateToURI2 has
> > >>> not yet been patched and/or back-ported into the EL6.x libvirt/qemu?
> > >>>
> > >>
> > >> virDomainMigrateToURI2 is supported since 0.9.2, but is there a
> > >> possibility the code is requesting direct migration?  That might
> explain
> > >> the message, which is then incorrect; this was fixed in [1].
> > >>
> > >> Martin
> > >>
> > >> [1]
> > >>
> http://libvirt.org/git/?p=libvirt.git;a=commitdiff;h=3189dfb1636da22d426d2fc07cc9f60304b16c5c
> > >
> > > What is "direct migration" exactly, in the context of qemu-kvm?
> > >
> > > We are using p2p migration
> > >
> http://gerrit.ovirt.org/gitweb?p=vdsm.git;a=blob;f=vdsm/libvirtvm.py;h=fe140ecbfac665248e2ad5c4bfaebaf54ab884cc;hb=18c24f7c7c27ac732c4a760caa9524e7319cd47e#l501
> > >
> >
> > OK, so that's not the issue, sorry for the confusion.  I was thinking it
> > would "somehow" get there.  Direct migration doesn't exist in QEMU at
> > all, so it seemed weird, but I can't seem to find any other reason for
> > this failure; will keep searching, though.
>
> In this case, Dead Horse, would you try to migrate a VM (that you do not
> care much about) using
>     virsh -c qemu+tls://hostname/system migrate --p2p dsthost?
>
> I'd like to see that the problem reproduces this way, too. More of
> libvirtd.log may help. You may want to disable iptables for a moment,
> just to eliminate a common cause of failure.
>
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