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

[Joseph Glanville]

Hi,

Ensure you have ruby properly installed on the machine `brandy` and
have configured ssh public key authentication without a passphrase for
the oneadmin account.
That should help you retrieve stats from `brandy` and hopefully
resolve your migration issues.
If you try deploy an instance to `brandy` is there anything written to
/srv/cloud/var/<vmid>/*.log ?
Also check /srv/cloud/var/oned.log for "Host Monitoring" errors if the
above doesn't allow you to retrieve stats from `brandy`.

Hope that helps,

Kind regards,

Joseph Glanville

GPG Key ID: A5FC8BE3



On Tue, Mar 9, 2010 at 1:28 AM, Harder, Stefan
<Stefan.Harder at fokus.fraunhofer.de> wrote:
> Hi,
>
>
>
> the only output I get from the log when I try to add “brandy” as node is:
>
>
>
> Mon Mar  8 15:02:24 2010 [ReM][D]: HostAllocate method invoked
>
>
>
> Deploying VMs on “vodka” works fine.
>
>
>
> Best,
>
>
>
> Stefan
>
>
>
>
>
> Von: Jack Jill [mailto:jacknjill111 at gmail.com]
> Gesendet: Donnerstag, 25. Februar 2010 21:34
> An: Harder, Stefan
> Cc: users at lists.opennebula.org
> Betreff: Re: [one-users] WG: Problem with (live)migration
>
>
>
>
>
> 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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>
> --
> Thanks,
> Rosh
> http://blogs.plexibus.com
>
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