................................
2016-04-21 16:08:59.748 27257 ERROR nova.compute.manager [req-b3153532-55a3-4054-b025-4675bf8ca365 1801dbd5187745ab890b6fb063c5f53d a6ecf620266e486db050c36854fcf1d9 - - -] [instance: 8b798a9b-5405-417f-b93f-9afe20254f85] Instance failed to spawn
2016-04-21 16:08:59.748 27257 ERROR nova.compute.manager [instance: 8b798a9b-5405-417f-b93f-9afe20254f85] Traceback (most recent call last):
2016-04-21 16:08:59.748 27257 ERROR nova.compute.manager [instance: 8b798a9b-5405-417f-b93f-9afe20254f85] File "/usr/lib/python2.7/dist-packages/nova/compute/manager.py", line 2155, in _build_resources
2016-04-21 16:08:59.748 27257 ERROR nova.compute.manager [instance: 8b798a9b-5405-417f-b93f-9afe20254f85] yield resources
2016-04-21 16:08:59.748 27257 ERROR nova.compute.manager [instance: 8b798a9b-5405-417f-b93f-9afe20254f85] File "/usr/lib/python2.7/dist-packages/nova/compute/manager.py", line 2009, in _build_and_run_instance
2016-04-21 16:08:59.748 27257 ERROR nova.compute.manager [instance: 8b798a9b-5405-417f-b93f-9afe20254f85] block_device_info=block_device_info)
2016-04-21 16:08:59.748 27257 ERROR nova.compute.manager [instance: 8b798a9b-5405-417f-b93f-9afe20254f85] File "/usr/lib/python2.7/dist-packages/nova/virt/libvirt/driver.py", line 2515, in spawn
2016-04-21 16:08:59.748 27257 ERROR nova.compute.manager [instance: 8b798a9b-5405-417f-b93f-9afe20254f85] block_device_info=block_device_info)
2016-04-21 16:08:59.748 27257 ERROR nova.compute.manager [instance: 8b798a9b-5405-417f-b93f-9afe20254f85] File "/usr/lib/python2.7/dist-packages/nova/virt/libvirt/driver.py", line 4590, in _create_domain_and_network
2016-04-21 16:08:59.748 27257 ERROR nova.compute.manager [instance: 8b798a9b-5405-417f-b93f-9afe20254f85] xml, pause=pause, power_on=power_on)
2016-04-21 16:08:59.748 27257 ERROR nova.compute.manager [instance: 8b798a9b-5405-417f-b93f-9afe20254f85] File "/usr/lib/python2.7/dist-packages/nova/virt/libvirt/driver.py", line 4520, in _create_domain
2016-04-21 16:08:59.748 27257 ERROR nova.compute.manager [instance: 8b798a9b-5405-417f-b93f-9afe20254f85] guest.launch(pause=pause)
2016-04-21 16:08:59.748 27257 ERROR nova.compute.manager [instance: 8b798a9b-5405-417f-b93f-9afe20254f85] File "/usr/lib/python2.7/dist-packages/nova/virt/libvirt/guest.py", line 141, in launch
2016-04-21 16:08:59.748 27257 ERROR nova.compute.manager [instance: 8b798a9b-5405-417f-b93f-9afe20254f85] self._encoded_xml, errors='ignore')
2016-04-21 16:08:59.748 27257 ERROR nova.compute.manager [instance: 8b798a9b-5405-417f-b93f-9afe20254f85] File "/usr/lib/python2.7/dist-packages/oslo_utils/excutils.py", line 195, in __exit__
2016-04-21 16:08:59.748 27257 ERROR nova.compute.manager [instance: 8b798a9b-5405-417f-b93f-9afe20254f85] six.reraise(self.type_, self.value, self.tb)
2016-04-21 16:08:59.748 27257 ERROR nova.compute.manager [instance: 8b798a9b-5405-417f-b93f-9afe20254f85] File "/usr/lib/python2.7/dist-packages/nova/virt/libvirt/guest.py", line 136, in launch
2016-04-21 16:08:59.748 27257 ERROR nova.compute.manager [instance: 8b798a9b-5405-417f-b93f-9afe20254f85] return self._domain.createWithFlags(flags)
2016-04-21 16:08:59.748 27257 ERROR nova.compute.manager [instance: 8b798a9b-5405-417f-b93f-9afe20254f85] File "/usr/lib/python2.7/dist-packages/eventlet/tpool.py", line 183, in doit
2016-04-21 16:08:59.748 27257 ERROR nova.compute.manager [instance: 8b798a9b-5405-417f-b93f-9afe20254f85] result = proxy_call(self._autowrap, f, *args, **kwargs)
2016-04-21 16:08:59.748 27257 ERROR nova.compute.manager [instance: 8b798a9b-5405-417f-b93f-9afe20254f85] File "/usr/lib/python2.7/dist-packages/eventlet/tpool.py", line 141, in proxy_call
2016-04-21 16:08:59.748 27257 ERROR nova.compute.manager [instance: 8b798a9b-5405-417f-b93f-9afe20254f85] rv = execute(f, *args, **kwargs)
2016-04-21 16:08:59.748 27257 ERROR nova.compute.manager [instance: 8b798a9b-5405-417f-b93f-9afe20254f85] File "/usr/lib/python2.7/dist-packages/eventlet/tpool.py", line 122, in execute
2016-04-21 16:08:59.748 27257 ERROR nova.compute.manager [instance: 8b798a9b-5405-417f-b93f-9afe20254f85] six.reraise(c, e, tb)
2016-04-21 16:08:59.748 27257 ERROR nova.compute.manager [instance: 8b798a9b-5405-417f-b93f-9afe20254f85] File "/usr/lib/python2.7/dist-packages/eventlet/tpool.py", line 80, in tworker
2016-04-21 16:08:59.748 27257 ERROR nova.compute.manager [instance: 8b798a9b-5405-417f-b93f-9afe20254f85] rv = meth(*args, **kwargs)
2016-04-21 16:08:59.748 27257 ERROR nova.compute.manager [instance: 8b798a9b-5405-417f-b93f-9afe20254f85] File "/usr/lib/python2.7/dist-packages/libvirt.py", line 896, in createWithFlags
2016-04-21 16:08:59.748 27257 ERROR nova.compute.manager [instance: 8b798a9b-5405-417f-b93f-9afe20254f85] if ret == -1: raise libvirtError ('virDomainCreateWithFlags() failed', dom=self)
2016-04-21 16:08:59.748 27257 ERROR nova.compute.manager [instance: 8b798a9b-5405-417f-b93f-9afe20254f85] libvirtError: internal error: process exited while connecting to monitor: 2016-04-21T07:08:59.222804Z qemu-system-x86_64: -drive file=/var/lib/nova/instances/8b798a9b-5405-417f-b93f-9afe20254f85/disk,if=none,id=drive-virtio-disk0,format=qcow2,cache=none: Could not open backing file: Could not open '/var/lib/nova/instances/_base/ba79ea3f695f2dfd87dc991daa49110a4c7bcc36': Permission denied
2016-04-21 16:08:59.748 27257 ERROR nova.compute.manager [instance: 8b798a9b-5405-417f-b93f-9afe20254f85]
2016-04-21 16:08:59.748 27257 ERROR nova.compute.manager [instance: 8b798a9b-5405-417f-b93f-9afe20254f85]
2016-04-21 16:08:59.750 27257 INFO nova.compute.manager [req-b3153532-55a3-4054-b025-4675bf8ca365 1801dbd5187745ab890b6fb063c5f53d a6ecf620266e486db050c36854fcf1d9 - - -] [instance: 8b798a9b-5405-417f-b93f-9afe20254f85] Terminating instance
2016-04-21 16:08:59.755 27257 INFO nova.virt.libvirt.driver [-] [instance: 8b798a9b-5405-417f-b93f-9afe20254f85] Instance destroyed successfully.
2016-04-21 16:08:59.775 27257 INFO nova.virt.libvirt.driver [req-b3153532-55a3-4054-b025-4675bf8ca365 1801dbd5187745ab890b6fb063c5f53d a6ecf620266e486db050c36854fcf1d9 - - -] [instance: 8b798a9b-5405-417f-b93f-9afe20254f85] Deleting instance files /var/lib/nova/instances/8b798a9b-5405-417f-b93f-9afe20254f85_del
2016-04-21 16:08:59.777 27257 INFO nova.virt.libvirt.driver [req-b3153532-55a3-4054-b025-4675bf8ca365 1801dbd5187745ab890b6fb063c5f53d a6ecf620266e486db050c36854fcf1d9 - - -] [instance: 8b798a9b-5405-417f-b93f-9afe20254f85] Deletion of /var/lib/nova/instances/8b798a9b-5405-417f-b93f-9afe20254f85_del complete