2016-04-19 06:54:01.746 1 INFO ceilometer.agent.base [-] Polling pollster disk.write.bytes in the context of meter_source
2016-04-19 06:54:01.747 1 ERROR ceilometer.compute.pollsters.disk [-] Ignoring instance instance-00000002: 'NoneType' object has no attribute 'libvirtError'
2016-04-19 06:54:01.747 1 TRACE ceilometer.compute.pollsters.disk Traceback (most recent call last):
2016-04-19 06:54:01.747 1 TRACE ceilometer.compute.pollsters.disk   File "/usr/lib/python2.7/site-packages/ceilometer/compute/pollsters/disk.py", line 125, in get_samples
2016-04-19 06:54:01.747 1 TRACE ceilometer.compute.pollsters.disk     instance,
2016-04-19 06:54:01.747 1 TRACE ceilometer.compute.pollsters.disk   File "/usr/lib/python2.7/site-packages/ceilometer/compute/pollsters/disk.py", line 85, in _populate_cache
2016-04-19 06:54:01.747 1 TRACE ceilometer.compute.pollsters.disk     for disk, info in inspector.inspect_disks(instance):
2016-04-19 06:54:01.747 1 TRACE ceilometer.compute.pollsters.disk   File "/usr/lib/python2.7/site-packages/ceilometer/compute/virt/libvirt/inspector.py", line 156, in inspect_disks
2016-04-19 06:54:01.747 1 TRACE ceilometer.compute.pollsters.disk     domain = self._get_domain_not_shut_off_or_raise(instance)
2016-04-19 06:54:01.747 1 TRACE ceilometer.compute.pollsters.disk   File "/usr/lib/python2.7/site-packages/ceilometer/compute/virt/libvirt/inspector.py", line 113, in _get_domain_not_shut_off_or_raise
2016-04-19 06:54:01.747 1 TRACE ceilometer.compute.pollsters.disk     domain = self._lookup_by_uuid(instance)
2016-04-19 06:54:01.747 1 TRACE ceilometer.compute.pollsters.disk   File "/usr/lib/python2.7/site-packages/ceilometer/compute/virt/libvirt/inspector.py", line 50, in decorator
2016-04-19 06:54:01.747 1 TRACE ceilometer.compute.pollsters.disk     except libvirt.libvirtError as e:
2016-04-19 06:54:01.747 1 TRACE ceilometer.compute.pollsters.disk AttributeError: 'NoneType' object has no attribute 'libvirtError'