[one-users] Problem with Migrate Opennebula +kvm

sergio garcia escriche sergei.garcia at gmail.com
Wed Feb 10 02:01:07 PST 2010


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<http://www.slideshare.net/rsmontero/building-clouds-one-14%0A2010/2/8>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
>> > (    +31 (0) 20 7547900 ext 2056
>> > (    +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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