[one-users] Interact with running VM

Fri Jan 14 06:04:44 PST 2011

Dear Tino,

I don't know what happens with snapshot-revert, but I know that with 
snapshot-create gives that message (strange for me too). The only 
command that I tryed is virsh snapshot-create...nothing else.

I attach a screenshot cause I know it's incredible.

Regards,

Filippo Dalla Gassa

Il 14/01/2011 14:44, Tino Vazquez ha scritto:
> Dear Filippo,
>
> What I find strange is that the snapshot create operation fails
> because it cannot find the snapshot it is trying to create. Isn't that
> the error message from the snapshot-revert operation? Maybe we should
> forward this to the libvirt mailing list.
>
> Regards,
>
> -Tino
>
> --
> Constantino Vázquez Blanco | dsa-research.org/tinova
> Virtualization Technology Engineer / Researcher
> OpenNebula Toolkit | opennebula.org
>
>
>
> On Fri, Jan 14, 2011 at 10:14 AM, Filippo Dalla Gassa
> <pippo.dallagassa at gmail.com>  wrote:
>> Dear Tino,
>>
>> the MAC address is correctly assigned from leases, but probably the
>> vmcontext.sh is not executed at boot (maybe rc2.d is not the correct
>> runlevel for Ubuntu Server).
>>
>> With regard to the snapshot problem, I can confirm that when I execute the
>> command virsh -c gsx://<host-name>?no_verify=1 snapshot-create
>> $ONE_LOCATION/lib/remotes/vmm/vmware/checkpoint, executed also in the "save"
>> vmware script, it gives me the error
>>
>> 	"Domain snapshot not found: Could not find snapshot with name 'checkpoint'"
>>
>> In my opinion this is because it creates the snapshot (in fact if I use
>> virsh snapshot-list there is a snapshot) but it gives the snapshot a totally
>> different name, in my case "VMware Server Undopoint", and not the name that
>> I decide. If I comment out the lines with virsh snapshot-create in the
>> "save" script I'm able to stop the machine correctly, so the problem is
>> precisely snapshot-create.
>>
>> Regards,
>>
>> Filippo Dalla Gassa
>>
>> Il 13/01/2011 17:23, Tino Vazquez ha scritto:
>>
>> Dear Filippo,
>>
>> comments inline,
>>
>>
>> On Thu, Jan 13, 2011 at 11:35 AM, Filippo Dalla Gassa
>> <pippo.dallagassa at gmail.com>  wrote:
>>
>> Dear Tino,
>> thanks for your answer, but problems remain.
>>
>> 1) Network problem: I followed what
>> "http://opennebula.org/documentation:rel2.0:cong" says.
>>
>> copied the vmcontext.sh file in the /etc/init.d directory of the disk used
>> by the VM
>> created the link to vmcontext.sh in /etc/rc2.d
>>
>> However, when I start vm with opennebula, it seems opennebula assigned an IP
>> from leases of the VN, but ping fails and if I enter the virtual machine via
>> VI Client I see that the real assigned IP is totally different.
>>
>> Please note that different linux flavors have different startup
>> schemas, maybe this is what is happening. Does the MAC address get
>> correctly set?
>>
>> 2) Snapshot problem: I made some tests and found this: if I try to make a
>> snapshot directly with virsh snapshot-create it gives to me this error
>> "Domain snapshot not found: Could not find snapshot with name '1294913536'"
>> (I let him assign a name). The strange thing is that VI Client gives me no
>> error message, like all goes well.  Moreover if I go into
>> $ONE_LOCATION/var/<VMID>/images/disk.0/ directory I see two files,
>> one-<VMID>-Snapshot1.vmem and one-<VMID>-Snapshot1.vmsn, and if try to
>> revert to snapshot the VM through VI Client it detects correctly the
>> snapshot.
>>
>> So the create functionality with virsh  doesn't work (this is what
>> opennebula vmware drivers uses in the save state)? Or is it the virsh
>> snapshot-revert?
>>
>> Regards,
>>
>> -Tino
>>
>>
>> Regards,
>>
>> Filippo Dalla Gassa
>>
>> Il 11/01/2011 18:58, Tino Vazquez ha scritto:
>>
>> Dear Filippo,
>>
>> Let's see ...
>>
>> 1) The network problem is probably related to a bad contextualization
>> of the VM. have ou set the vmcontext.sh script [see then end of 1] ?
>>
>> 2) VM monitoring in VMware is quite minimal, it just detects if the VM
>> is still running or not
>>
>> 3) This may be due to an undeleted checkpoint file. Could you please
>> use the VI Client to find out the exact error message?
>>
>> Regards,
>>
>> -Tino
>>
>>
>> [1] http://opennebula.org/documentation:rel2.0:vgg
>> --
>> Constantino Vázquez Blanco | dsa-research.org/tinova
>> Virtualization Technology Engineer / Researcher
>> OpenNebula Toolkit | opennebula.org
>>
>>
>>
>> On Mon, Jan 10, 2011 at 3:35 PM, Filippo Dalla Gassa
>> <pippo.dallagassa at gmail.com>  wrote:
>>
>> Hi,
>> I create a vm with this template
>>
>> NAME = "Ubuntu-Server"
>>
>> MEMORY = 512
>>
>> CPU = 1
>>
>> VCPU = 1
>>
>> OS = [
>>    ARCH = i686
>> ]
>>
>> DISK = [
>>    IMAGE = "Ubuntu Server"
>> ]
>>
>> NIC = [NETWORK = "Public"]
>>
>> NIC = [NETWORK = "Other"]
>>
>> After the vm goes running I try to ping the IP address assigned to the vm
>> but the result is "Destination host is unreachable". Also if I use onevm
>> show I see all monitored values (memory, cpu, net_tx, net_rx) are 0
>> (possible there is no activity?) and in log file they result as -1, so for
>> some reason it can't monitor the vm (but it can monitor the host). Finally I
>> can't stop the virtual machine, if I try the state remains "running" and log
>> file says
>>
>> Mon Jan 10 10:34:51 2011 [LCM][I]: New VM state is SAVE_STOP
>> Mon Jan 10 10:35:22 2011 [VMM][E]: Error saving VM state, -
>> Mon Jan 10 10:35:22 2011 [LCM][I]: Fail to save VM state. Assuming that the
>> VM is still RUNNING (will poll VM).
>>
>> I use vmware server as hypervisor, what can I do?
>>
>> Regardly,
>>
>> --
>> Filippo Dalla Gassa
>>
>> _______________________________________________
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>> Users at lists.opennebula.org
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>>
>>
>>
>>
>>
>> --
>> Constantino Vázquez Blanco | dsa-research.org/tinova
>> Virtualization Technology Engineer / Researcher
>> OpenNebula Toolkit | opennebula.org
>>
>>
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