[PVE-User] ERROR: unable to connect to VM 105 qmp socket - timeout after 31 retries

["[SOLTECSIS] Carles Xavier Munyoz Baldó"]

Hello,
It seems that converting the qcow2 virtual disk file to the last qcow2
format solves the problem.

In a virtual machine with the problem, before the conversión, the
qemu-img info comands shows this:
[...]
# qemu-img info disk.qcow2.OLD
image: disk.qcow2.OLD
file format: qcow2
virtual size: 32G (34359738368 bytes)
disk size: 8.3G
cluster_size: 65536
Format specific information:
    compat: 0.10
[...]

After the virtual disk conversion using the command:
# qemu-img convert -O qcow2 disk.qcow2.OLD disk.qcow2
the info command shows:
[...]
# qemu-img info disk.qcow2
image: disk.qcow2
file format: qcow2
virtual size: 32G (34359738368 bytes)
disk size: 8.1G
cluster_size: 65536
Format specific information:
    compat: 1.1
    lazy refcounts: false
    corrupt: false
[...]

We are waiting a prudential time in order to conclude that the problem
is solved, but since the conversion the virtual machines are stable.

The conversion moves the virtual disk qcow2 file from compat: 0.10 to
compat: 1.1. Is it possible that the software under Proxmox 3.4 is
incompatible with qcow2 files compat: 0.10?
As I said in my first e-mail, we were running the virtual machines
without problems until we upgrade Proxmox from 3.1 to 3.4.

Best regards.


El 05/05/15 a las 19:18, "[SOLTECSIS] Carles Xavier Munyoz Baldó" escribió:
> More info about the problem ...
> It seems that the virtual machines lost access to its disks, because
> there are no logs in the /var/log/syslog file since the problem until de
> hard reboot.
> 
> The two virtual machines use qcow2 virtual disks.
> ¿Should I do something in the virtual disks after the upgrade?
> 
> 
> El 05/05/15 a las 19:14, "[SOLTECSIS] Carles Xavier Munyoz Baldó" escribió:
>> Hello,
>> Yes, I rebooted the entire host server because in the updates where
>> included a new kernel.
>>
>> The problem arises after the upgrade and host server reboot. And it is
>> not inmediatly after the virtual machines boot, it has happen after
>> several hours of normal operation and the two virtual machines where not
>> affected at the same time.
>>
>> Thank you for your help.
>>
>>
>> El 05/05/15 a las 19:00, Michael Rasmussen escribió:
>>> On Tue, 05 May 2015 18:50:42 +0200
>>> "[SOLTECSIS] Carles Xavier Munyoz Baldó" <carles at unlimitedmail.org>
>>> wrote:
>>>
>>>> A few hours after upgrade, I have had problems with two different
>>>> virtual machines, one with Windows and the other one with Linux. The
>>>> virtual machines have been stopped working. I have tried to access the
>>>> console of them but it was not possible and in the /var/log/syslogfile I
>>>> have seen errors like these:
>>> Did you stop and start the VM's after updating proxmox?
>>>
>>> proxmox 3.1 -> 3.4 includes a major upgrade of qemu why a stop and
>>> start of the VM's is required.
>>>
>>>
>>>
>>> _______________________________________________
>>> pve-user mailing list
>>> pve-user at pve.proxmox.com
>>> http://pve.proxmox.com/cgi-bin/mailman/listinfo/pve-user
>>>
>>
>> ========================================
>> SOLTECSIS SOLUCIONES TECNOLOGICAS, S.L.
>> Carles Xavier Munyoz Baldó
>> Departamento de I+D+I
>> Tel./Fax: 966 446 046
>> cmunyoz at soltecsis.com
>> www.soltecsis.com
>> ========================================
>>
>> ---
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>>
> 
> 


-- 
Saludos.
========================================
SOLTECSIS SOLUCIONES TECNOLOGICAS, S.L.
Carles Xavier Munyoz Baldó
Departamento de I+D+I
Tel./Fax: 966 446 046
cmunyoz at soltecsis.com
www.soltecsis.com
========================================

---
La información contenida en este e-mail es confidencial,
siendo para uso exclusivo del destinatario arriba mencionado.
Le informamos que está totalmente prohibida cualquier
utilización, divulgación, distribución y/o reproducción de
esta comunicación sin autorización expresa en virtud de la
legislación vigente. Si ha recibido este mensaje por error,
le rogamos nos lo notifique inmediatamente por la misma vía
y proceda a su eliminación.
---