[Users] oVirt 3.3.3 - Migration failures

[LANGE Thomas]

Hi,

Thanks for your feedback !

In the tab “Virtual Machines”, I see 7 VMs, all of them are up (green triangle). In the tab “Hosts”, there is a column named “Virtual Machines” (I guess this is the number of VMs running on each host) and there I see 7 VMs for pc001, 4 for pc002 and 3 for pc003. What I meant was that 7+3+4=14 VMs instead of the 7 existing VMs. If I shutdown 6 of the VMs to have only 1 running VM, it shows 7 VMs pour pc001, 0 for pc002, and 1 for pc003.

I disabled quotas and the situation did not change. I also rebooted the 3 machines but when I tried to migrate one of the VM the same things happened. Please find attached the logs of this attempt.

Detail of what I did:

·         All 3 hosts finished the boot process

·         Log in to the admin portal to check that everything is fine

·         Start logging of VDSM (on the 3 hosts) and engine (host pc002).

·         Startup VM Debian – it started on pc003

·         Once VM is booted, start a migration to specific host pc001

·         Once migration failed, verify that the VM was still running on pc003 but the number of running VM on pc001 did 0 -> 1

·         Stop logging


Thanks.

Thomas LANGÉ

De : Michal Skrivanek [mailto:michal.skrivanek at redhat.com]
Envoyé : mercredi 12 mars 2014 18:40
À : LANGE Thomas
Cc : users at ovirt.org
Objet : Re: [Users] oVirt 3.3.3 - Migration failures



On 12 Mar 2014, at 15:52, LANGE Thomas <thomas.lange at thalesgroup.com<mailto:thomas.lange at thalesgroup.com>> wrote:
Hi !

I am testing all the functionalities of oVirt for work and I have some issues regarding live migration.
Here’s my configuration:

-       pc001 : CentOS 6.5 minimal with VDSM (4.13.3-3.el6)

-       pc002 : CentOS 6.5 minimal with VDSM (4.13.3-3.el6) and ovirt-engine (3.3.3-2.el6)

-       pc003 : CentOS 6.5 with VDSM (4.13.3-3.el6)
All these servers are in the same cluster and datacenter is using NFS for storage.

Here’s my problem : I have one VM (called Debian) running on a specific host (pc003.lan). I try to migrate it to another host (pc001.lan) but the migration fails. As a result, the VM is still running on pc003 and the number of running VMs on this host is still the same; but I can see one more VM running on the host pc001. It does the same thing with other VMs (mavm1, mavm2, mavm3, Debian2….). At the end, the administration portal tells me I have 7VMs running on host pc001, 4 on pc002 and 3 on pc001; I have only 7 VMs , not 14.

Hi,
...running - i.e. they are shown as the green triangle as if they are running, all 14 of them?



From now, some errors keep showing up in the log (see attachment). It says that migrations are still running but I cannot cancel them in the administration portal and they never stop/succeed/fail. This problem occurred some time after I enabled quotas in the Datacenter but I don’t know if it’s related in any way.

Might be. Does it disappear when you disable quota?:)



If I reboot pc001, the number of running VM is reset to 0, but any attempt to migrate a VM to this host does the same thing again. Also, restarting the engine did not fix this issue.

Does anyone have an idea about what’s happening ? I’m new with oVirt and I don’t know what to do to solve this.

seems a destination creation issue. Please reproduce with one VM and get the logs from both source and destination host from that time.

Thanks,
michal


Thanks for your help !

Regards,

Thomas LANGÉ

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