[one-users] Problem with Migrate Opennebula +kvm

Wed Feb 10 07:59:26 PST 2010

Hello,

OpenNebula does not automatically start VMs when they disappear. It
also cannot migrate a VM when the physical node where it was running
as the VM does not exist anymore (and it cannot connect to a powered
off physical host).

Bye

On Wed, Feb 10, 2010 at 11:01 AM, sergio garcia escriche
<sergei.garcia at gmail.com> wrote:
> hi,
>
> I obtain to do a live migrate, I install a new front-end machine and all is
> ok, but I try if i have a VM runn to poweroff the cluster node that VM's use
> to prove if the vm change automatically to another cluster node but after 5
> minutes that machine is off the onevm list show this:
>
>  ID     USER     NAME STAT CPU     MEM        HOSTNAME        TIME
>   10 oneadmin    winxp runn   0 2048000       cluster02 00 01:50:27
>
> And oned.log show this:
> Wed Feb 10 10:01:15 2010 [InM][I]: ssh: connect to host cluster02 port 22:
> No route to host
> Wed Feb 10 10:01:15 2010 [InM][I]: ExitCode: 255
> Wed Feb 10 10:01:15 2010 [InM][E]: Error monitoring host 0 : MONITOR FAILURE
> 0 Could not monitor host cluster02.
>
> If possible that Opennebula can't change the vm's automatically when one
> cluster node is down?
>
> Thank you very much,
>
> Regards,
>
> Sergio
>
> 2010/2/9 sergio garcia escriche <sergei.garcia at gmail.com>
>>
>> Hi,
>>
>> I have Ubuntu 9.04 in two clusters. I think all is ok, permissions too. I
>> don't understand why i put migrate in cluster node show here:
>>
>> virsh # list
>>  Id Name                 State
>> ----------------------------------
>>   5 one-4                paused
>>
>> Thank you,
>>
>> Sergio
>>
>> 2010/2/8 Ruben S. Montero <rubensm at dacya.ucm.es>
>>>
>>> Hi Sergio,
>>>
>>> You may have problems with the last version of Ubuntu (9.10) and
>>> apparmor. The default configuration of the qemu-libvirt files prevents
>>> the daemon to write checkpoint files under $ONE_LOCATION...
>>>
>>> If you are using Karmic follow slide 47 of [1]. You should apply that
>>> to all the cluster nodes.
>>>
>>> Cheers
>>>
>>> Ruben
>>>
>>>
>>> REFS
>>> [1] http://www.slideshare.net/rsmontero/building-clouds-one-14
>>> 2010/2/8 Nikola Milutinović <n.milutinovic at levi9.com>:
>>> > On 2/7/2010 6:30 PM, sergio garcia escriche wrote:
>>> >
>>> > ID     USER     NAME STAT CPU     MEM        HOSTNAME        TIME
>>> >   47 oneadmin    winxp susp   0 2048000       cluster02 01 09:08:49
>>> > When I go to the oned.log says this error:
>>> > Sun Feb  7 18:26:00 2010 [DiM][D]: Migrating VM 47
>>> > Sun Feb  7 18:26:00 2010 [VMM][D]: Message received: LOG - 47 Command
>>> > execution fail: 'touch /srv/cloud/one/var/47/images/checkpoint;virsh
>>> > --connect qemu:///system save one-47
>>> > /srv/cloud/one/var/47/images/checkpoint'
>>> > Sun Feb  7 18:26:00 2010 [VMM][D]: Message received: LOG - 47 STDERR
>>> > follows.
>>> > Sun Feb  7 18:26:00 2010 [VMM][D]: Message received: LOG - 47
>>> > Connecting to
>>> > uri: qemu:///system
>>> > Sun Feb  7 18:26:00 2010 [VMM][D]: Message received: LOG - 47 error:
>>> > Failed
>>> > to save domain one-47 to /srv/cloud/one/var/47/images/checkpoint
>>> > Sun Feb  7 18:26:00 2010 [VMM][D]: Message received: LOG - 47 error:
>>> > operation failed: failed to create
>>> > '/srv/cloud/one/var/47/images/checkpoint'
>>> > Sun Feb  7 18:26:00 2010 [VMM][D]: Message received: LOG - 47 ExitCode:
>>> > 1
>>> > Sun Feb  7 18:26:00 2010 [VMM][D]: Message received: SAVE FAILURE 47 -
>>> >
>>> > Main question is why it failed to create that checkpoint file. Are file
>>> > permissions OK? It may sound ridiculous, since the VM is running, maybe
>>> > Xen
>>> > cannot create the file in that directory?
>>> >
>>> > Nix.
>>> > --
>>> > Met vriendelijke groet / Kind regards,
>>> > Nikola Milutinovic
>>> > Sr Java Developer
>>> > Levi9 Global Sourcing
>>> > ________________________________
>>> > .  Jan van Goyenkade 8, 1075 HP Amsterdam, The Netherlands
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>>> > (    +381 (0) 21 4895800 ext 2056
>>> > È    +381 (0) 64 2202824
>>> > *    n.milutinovic at Levi9.com
>>> > ^    Skype: nikola.milutinovic
>>> > ü    www.levi9.com
>>> >
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>>>
>>> --
>>> Dr. Ruben Santiago Montero
>>> Associate Professor, Complutense University of Madrid
>>>
>>> URL:    http://dsa-research.org/doku.php?id=people:ruben
>>> Weblog: http://blog.dsa-research.org/?author=7
>>
>
>
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-- 
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