[Users] Online snapshot

[Itamar Heim]

On 06/27/2012 10:47 AM, Winfried de Heiden wrote:
> Hi all,
>
>
> Trying to create an online (vm still running) fails; attachted is de
> vdsm logfile trying to create a live snapshot.
>
> Some details:
>
> hypervisor = Fedora 17 + vdsm, all the latest updates etc.
>
> [root at kvm vdsm]# rpm -qi vdsm
> Name        : vdsm
> Version     : 4.10.0
> Release     : 2.fc17
> Architecture: x86_64
> Install Date: wo 27 jun 2012 12:08:20 CEST
> Group       : Applications/System
> Size        : 2425943
> License     : GPLv2+
> Signature   : (none)
> Source RPM  : vdsm-4.10.0-2.fc17.src.rpm
> Build Date  : vr 22 jun 2012 12:52:54 CEST
> Build Host  : x86-11.phx2.fedoraproject.org
> Relocations : (not relocatable)
> Packager    : Fedora Project
> Vendor      : Fedora Project
> URL         : http://www.ovirt.org/wiki/Vdsm
> Summary     : Virtual Desktop Server Manager
> Description :
> The VDSM service is required by a Virtualization Manager to manage the
> Linux hosts. VDSM manages and monitors the host's storage, memory and
> networks as well as virtual machine creation, other host administration
> tasks, statistics gathering, and log collection.
>
> BTL, sanlock is disabled in qemu.conf (#lock_manager="sanlock"), I
> cannot install a vm when it's enabled. Is that related?

this is the relevant error coming from libvirt.
maybe fedora 17 qemu-kvm does not have live snapshot support?

Thread-306::ERROR::2012-06-27 
12:46:40,178::libvirtvm::1782::vm.Vm::(snapshot) 
vmId=`ef978066-09c8-40aa-8e0b-4accfacc15bd`::Unable to take snapshot
Traceback (most recent call last):
   File "/usr/share/vdsm/libvirtvm.py", line 1780, in snapshot
     libvirt.VIR_DOMAIN_SNAPSHOT_CREATE_REUSE_EXT))
   File "/usr/share/vdsm/libvirtvm.py", line 491, in f
     ret = attr(*args, **kwargs)
   File "/usr/lib/python2.7/site-packages/vdsm/libvirtconnection.py", 
line 82, in wrapper
     ret = f(*args, **kwargs)
   File "/usr/lib64/python2.7/site-packages/libvirt.py", line 1443, in 
snapshotCreateXML
     if ret is None:raise libvirtError('virDomainSnapshotCreateXML() 
failed', dom=self)
libvirtError: unsupported configuration: reuse is not supported with 
this QEMU binary