[one-users] WG: Problem with (live)migration

Jack Jill jacknjill111 at gmail.com
Thu Feb 25 12:34:18 PST 2010


On Thu, Feb 25, 2010 at 9:01 AM, Harder, Stefan <
Stefan.Harder at fokus.fraunhofer.de> wrote:

> I have some additions to my last Email:
>
> I have two machines "brandy" on which the cloud manager is installed and
> "vodka" the cluster node. I created a vnet and then the ttylinux example
> and
> it worked after some try and error.
>
> For testing the migration functionality I wanted to add the brandy machine
> also as cluster node with
>
> oneadmin at brandy:/srv/cloud$ onehost create brandy im_kvm vmm_kvm tm_nfs
>
> After a while onehost list shows:
>
>  ID NAME                      RVM   TCPU   FCPU   ACPU    TMEM    FMEM STAT
>   6 vodka                       1    400    398    398 8189944 7667316   on
>   7 brandy                      0    400    400    400       0 7859184   on
>
> Without the TMEM info. And migration to this host doesn’t work as mentioned
> in my first email. If I delete the vodka machine from the hosts and want to
> deploy a vm on brandy it doesn’t work, the vm stays in pend status. If I
> deploy a vm on brandy without OpenNebula only with virsh it works. So I
> think something went wrong creating the host brandy. But what?
>

Could you please post relevant (host brandy creation) log output from
oned.log?

Can you deploy VMs on host vodka?


>
> Any guesses?
>
> Best,
>
> Stefan
>
>
> > -----Ursprüngliche Nachricht-----
> > Von: Harder, Stefan
> > Gesendet: Donnerstag, 25. Februar 2010 10:40
> > An: 'users at lists.opennebula.org'
> > Betreff: Problem with (live)migration
> >
> > Hi,
> >
> > I get the following error when I try to migrate or livemigrate a
> > running VM (in this case the ttylinux example) from one host to
> > another. They have a shared FS which is under /srv/cloud.
> >
> > Thu Feb 25 10:34:56 2010 [DiM][D]: Live-migrating VM 50
> > Thu Feb 25 10:34:57 2010 [VMM][D]: Message received: LOG - 50 Command
> > execution fail: virsh --connect qemu:///system migrate --live one-50
> > qemu+ssh://brandy/session
> >
> > Thu Feb 25 10:34:57 2010 [VMM][D]: Message received: LOG - 50 STDERR
> > follows.
> >
> > Thu Feb 25 10:34:57 2010 [VMM][D]: Message received: LOG - 50
> > /usr/lib/ruby/1.8/open3.rb:67: warning: Insecure world writable dir
> > /srv/cloud/one in PATH, mode 040777
> >
> > Thu Feb 25 10:34:57 2010 [VMM][D]: Message received: LOG - 50
> > Connecting to uri: qemu:///system
> >
> > Thu Feb 25 10:34:57 2010 [VMM][D]: Message received: LOG - 50 error:
> > operation failed: domain with the same name or UUID already exists as
> > 'one-50'
> >
> > Thu Feb 25 10:34:57 2010 [VMM][D]: Message received: LOG - 50 ExitCode:
> > 1
> >
> > Thu Feb 25 10:34:57 2010 [VMM][D]: Message received: MIGRATE FAILURE 50
> > -
> >
> >
> > Does somebody know why the domain already eyists?
> >
> > Best Regards,
> >
> > Stefan
>
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> Users at lists.opennebula.org
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>
>


-- 
Thanks,
Rosh
http://blogs.plexibus.com
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