[one-users] live migration fails on ubuntu 11.04

Thu Jun 30 23:12:04 PDT 2011

I did a full verification and turned out to be the same problem, a wrong
entry in /etc/hosts. One of the node's entry was not propoerly set
(mispelled domain) and it made impossible for one node's Kvm connect to the
other one.

In order to find out the problem I increased libvirt's debug level to
maximum and I saw thew wrong remote host.domain error.

Thank you very much for the support and apologies for the noise,

Samuel.

On 30 June 2011 19:15, Javier Fontan <jfontan at gmail.com> wrote:

> I cannot see any info that leads me to find the problem. Have you
> tried migrating VM's manually, that is, using libvirt/kvm manually,
> not OpenNebula. Also check that both machines have the same processor
> and libvirt/kvm versions.
>
> On Fri, Jun 17, 2011 at 5:58 PM, samuel <samu60 at gmail.com> wrote:
> >
> > The error happened to be a wrong entry in the file /etc/hosts, where the
> > remote node's IP was set to the local one and there were several errors.
> >
> > However, it is not yet possible to perform live migration on the same
> > escenario (normal migration works perfectly), I always end up with the
> > following error:
> > Fri Jun 17 17:47:58 2011 [LCM][I]: New VM state is MIGRATE
> > Fri Jun 17 17:51:09 2011 [VMM][I]: Command execution fail: 'if [ -x
> > "/var/tmp/one/vmm/kvm/migrate" ]; then /var/tmp/one/vmm/kvm/migrate
> one-21
> > node2; else                              exit 42; fi'
> > Fri Jun 17 17:51:09 2011 [VMM][I]: STDERR follows.
> > Fri Jun 17 17:51:09 2011 [VMM][I]: error: operation failed: migration
> job:
> > unexpectedly failed
> > Fri Jun 17 17:51:09 2011 [VMM][I]: ExitCode: 1
> > Fri Jun 17 17:51:09 2011 [VMM][E]: Error live-migrating VM, error:
> operation
> > failed: migration job: unexpectedly failed
> > Fri Jun 17 17:51:09 2011 [LCM][I]: Fail to life migrate VM. Assuming that
> > the VM is still RUNNING (will poll VM).
> >
> > This is the output of the file /var/log/libvirt/qemu/one-21.log
> > 2011-06-17 17:48:02.232: starting up
> > LC_ALL=C
> PATH=/usr/local/sbin:/usr/local/bin:/usr/bin:/usr/sbin:/sbin:/bin
> > QEMU_AUDIO_DRV=none /usr/bin/kvm -S -M pc-0.14 -cpu qemu32 -enable-kvm -m
> > 2048 -smp 1,sockets=1,cores=1,threads=1 -name one-21 -uuid
> > b9330d8d-3d2e-666a-c9e5-5e32e81c29dc -nodefconfig -nodefaults -chardev
> >
> socket,id=charmonitor,path=/var/lib/libvirt/qemu/one-21.monitor,server,nowait
> > -mon chardev=charmonitor,id=monitor,mode=readline -rtc base=utc -boot c
> > -drive
> >
> file=/srv/cloud/one/var//21/images/disk.0,if=none,id=drive-ide0-0-0,format=raw
> > -device ide-drive,bus=ide.0,unit=0,drive=drive-ide0-0-0,id=ide0-0-0
> -netdev
> > tap,fd=18,id=hostnet0 -device
> > rtl8139,netdev=hostnet0,id=net0,mac=02:00:c0:a8:32:03,bus=pci.0,addr=0x3
> > -usb -vnc 0.0.0.0:21 -vga cirrus -incoming tcp:0.0.0.0:49152 -device
> > virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x4
> > 2011-06-17 17:51:11.997: shutting down
> >
> > And on /var/log/syslog, the folloing line:
> > Jun 17 17:51:46 node2 libvirtd: 17:51:46.798: 1200: error :
> > qemuDomainWaitForMigrationComplete:4218 : operation failed: migration
> job:
> > unexpectedly failed
> >
> > Can anyone provide help on this issue? How can I debug the live
> migration?
> >
> > Thank you very much in advance,
> > Samuel.
> >
> > On 7 June 2011 17:22, samuel <samu60 at gmail.com> wrote:
> >>
> >> Hi folks,
> >>
> >> After few tricks to the standard configuration (controller exporting via
> >> NFS opennebula directories to 2 other nodes) seems to work except for
> one
> >> point: live migration.
> >>
> >> When starting live migration (from sunstone web interface), the
> following
> >> problem appears:
> >>
> >> Tue Jun  7 17:12:51 2011 [VMM][I]: Command execution fail: 'if [ -x
> >> "/var/tmp/one/vmm/kvm/migrate" ]; then /var/tmp/one/vmm/kvm/migrate
> one-131
> >> node1; else                              exit 42; fi'
> >> Tue Jun  7 17:12:51 2011 [VMM][I]: STDERR follows.
> >> Tue Jun  7 17:12:51 2011 [VMM][I]: error: Requested operation is not
> >> valid: domain is already active as 'one-131'
> >> Tue Jun  7 17:12:51 2011 [VMM][I]: ExitCode: 1
> >> Tue Jun  7 17:12:51 2011 [VMM][E]: Error live-migrating VM, error:
> >> Requested operation is not valid: domain is already active as 'one-131'
> >> Tue Jun  7 17:12:51 2011 [LCM][I]: Fail to life migrate VM. Assuming
> that
> >> the VM is still RUNNING (will poll VM).
> >>
> >> I'm using qemu+ssh transport with the following version:
> >> $ virsh version
> >> Compilado contra la biblioteca: libvir 0.8.8
> >> Utilizando la biblioteca: libvir 0.8.8
> >> Utilizando API: QEMU 0.8.8
> >> Ejecutando hypervisor: QEMU 0.14.0
> >>
> >> Installed version of open nebula is 2.2.
> >>
> >> Could anyone shed some light on this issue? I've looked in the Internet
> >> and found some posts relating to qemu bugs but I'd like to know whether
> can
> >> I get more information about this issue.
> >>
> >> Thank you very much in advance,
> >> Samuel.
> >
> >
> > _______________________________________________
> > Users mailing list
> > Users at lists.opennebula.org
> > http://lists.opennebula.org/listinfo.cgi/users-opennebula.org
> >
> >
>
>
>
> --
> Javier Fontan, Grid & Virtualization Technology Engineer/Researcher
> DSA Research Group: http://dsa-research.org
> Globus GridWay Metascheduler: http://www.GridWay.org
> OpenNebula Virtual Infrastructure Engine: http://www.OpenNebula.org
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.opennebula.org/pipermail/users-opennebula.org/attachments/20110701/c749d100/attachment-0003.htm>