[one-users] Interact with running VM

[Tino Vazquez]

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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>
>
>
>
> --
> Constantino Vázquez Blanco | dsa-research.org/tinova
> Virtualization Technology Engineer / Researcher
> OpenNebula Toolkit | opennebula.org
>
>