Comment 4 for bug 873156

I've applied the fix and it works for me! Thank you very much.

Th nova-compute.log ouput now, shows:

2011-10-18 20:25:29,968 DEBUG nova.compute.manager [-] Checking state of instance-00000003 from (pid=32205) _get_power_state /usr/lib/python2.7/dist-packages/nova/compute/manager.py:188
2011-10-18 20:25:31,080 AUDIT nova.compute.manager [f3aa092a-2d16-46ba-813b-30a1f16098a9 user PROJECT] instance 3: snapshotting
2011-10-18 20:28:10,897 DEBUG nova.utils [-] Running cmd (subprocess): qemu-img convert -f qcow2 -O raw -s cd6e87433a3441b09e4e2f5bf244721f /var/lib/nova/instances/instance-00000003/disk /tmp/tmpXSA77w/cd6e87433a3441b09e4e2f5bf244721f from (pid=32205) execute /usr/lib/python2.7/dist-packages/nova/utils.py:165
2011-10-18 20:28:10,926 INFO nova.compute.manager [-] Updating host status