Unable to Launch Instance from Snapshot Image

Issue

• Attempting to launch a VM from an image fails with the following error message:

2015-12-01 12:32:08.373 31366 ERROR nova.compute.manager [req-8539da38-b34c-4142-9196-959f8fd6f8a0 487d5d3692fc4a678ca5012f3b1e3878 e8b64e09b2e141459d7cbad889432a85] [instance: dd265eed-6869-4e0d-8611-a9fccd216fc1] Error: Image 6ab3e2ce-c
173-43d9-af8c-be2bcf7e05cf could not be found.
2015-12-01 12:32:08.373 31366 TRACE nova.compute.manager [instance: dd265eed-6869-4e0d-8611-a9fccd216fc1] Traceback (most recent call last):
2015-12-01 12:32:08.373 31366 TRACE nova.compute.manager [instance: dd265eed-6869-4e0d-8611-a9fccd216fc1]   File "/usr/lib/python2.7/site-packages/nova/compute/manager.py", line 1392, in _build_instance
2015-12-01 12:32:08.373 31366 TRACE nova.compute.manager [instance: dd265eed-6869-4e0d-8611-a9fccd216fc1]     set_access_ip=set_access_ip)
2015-12-01 12:32:08.373 31366 TRACE nova.compute.manager [instance: dd265eed-6869-4e0d-8611-a9fccd216fc1]   File "/usr/lib/python2.7/site-packages/nova/compute/manager.py", line 418, in decorated_function
2015-12-01 12:32:08.373 31366 TRACE nova.compute.manager [instance: dd265eed-6869-4e0d-8611-a9fccd216fc1]     return function(self, context, *args, **kwargs)
2015-12-01 12:32:08.373 31366 TRACE nova.compute.manager [instance: dd265eed-6869-4e0d-8611-a9fccd216fc1]   File "/usr/lib/python2.7/site-packages/nova/compute/manager.py", line 1810, in _spawn
2015-12-01 12:32:08.373 31366 TRACE nova.compute.manager [instance: dd265eed-6869-4e0d-8611-a9fccd216fc1]     LOG.exception(_('Instance failed to spawn'), instance=instance)
2015-12-01 12:32:08.373 31366 TRACE nova.compute.manager [instance: dd265eed-6869-4e0d-8611-a9fccd216fc1]   File "/usr/lib/python2.7/site-packages/nova/openstack/common/excutils.py", line 68, in __exit__
2015-12-01 12:32:08.373 31366 TRACE nova.compute.manager [instance: dd265eed-6869-4e0d-8611-a9fccd216fc1]     six.reraise(self.type_, self.value, self.tb)
2015-12-01 12:32:08.373 31366 TRACE nova.compute.manager [instance: dd265eed-6869-4e0d-8611-a9fccd216fc1]   File "/usr/lib/python2.7/site-packages/nova/compute/manager.py", line 1807, in _spawn
2015-12-01 12:32:08.373 31366 TRACE nova.compute.manager [instance: dd265eed-6869-4e0d-8611-a9fccd216fc1]     block_device_info)
2015-12-01 12:32:08.373 31366 TRACE nova.compute.manager [instance: dd265eed-6869-4e0d-8611-a9fccd216fc1]   File "/usr/lib/python2.7/site-packages/nova/virt/libvirt/driver.py", line 2401, in spawn
2015-12-01 12:32:08.373 31366 TRACE nova.compute.manager [instance: dd265eed-6869-4e0d-8611-a9fccd216fc1]     admin_pass=admin_password)
2015-12-01 12:32:08.373 31366 TRACE nova.compute.manager [instance: dd265eed-6869-4e0d-8611-a9fccd216fc1]   File "/usr/lib/python2.7/site-packages/nova/virt/libvirt/driver.py", line 2791, in _create_image
2015-12-01 12:32:08.373 31366 TRACE nova.compute.manager [instance: dd265eed-6869-4e0d-8611-a9fccd216fc1]     project_id=instance['project_id'])
2015-12-01 12:32:08.373 31366 TRACE nova.compute.manager [instance: dd265eed-6869-4e0d-8611-a9fccd216fc1]   File "/usr/lib/python2.7/site-packages/nova/virt/libvirt/imagebackend.py", line 186, in cache
2015-12-01 12:32:08.373 31366 TRACE nova.compute.manager [instance: dd265eed-6869-4e0d-8611-a9fccd216fc1]     *args, **kwargs)
2015-12-01 12:32:08.373 31366 TRACE nova.compute.manager [instance: dd265eed-6869-4e0d-8611-a9fccd216fc1]   File "/usr/lib/python2.7/site-packages/nova/virt/libvirt/imagebackend.py", line 428, in create_image
2015-12-01 12:32:08.373 31366 TRACE nova.compute.manager [instance: dd265eed-6869-4e0d-8611-a9fccd216fc1]     prepare_template(target=base, max_size=size, *args, **kwargs)
2015-12-01 12:32:08.373 31366 TRACE nova.compute.manager [instance: dd265eed-6869-4e0d-8611-a9fccd216fc1]   File "/usr/lib/python2.7/site-packages/nova/openstack/common/lockutils.py", line 249, in inner
2015-12-01 12:32:08.373 31366 TRACE nova.compute.manager [instance: dd265eed-6869-4e0d-8611-a9fccd216fc1]     return f(*args, **kwargs)
2015-12-01 12:32:08.373 31366 TRACE nova.compute.manager [instance: dd265eed-6869-4e0d-8611-a9fccd216fc1]   File "/usr/lib/python2.7/site-packages/nova/virt/libvirt/imagebackend.py", line 176, in fetch_func_sync
2015-12-01 12:32:08.373 31366 TRACE nova.compute.manager [instance: dd265eed-6869-4e0d-8611-a9fccd216fc1]     fetch_func(target=target, *args, **kwargs)
2015-12-01 12:32:08.373 31366 TRACE nova.compute.manager [instance: dd265eed-6869-4e0d-8611-a9fccd216fc1]   File "/usr/lib/python2.7/site-packages/nova/virt/libvirt/utils.py", line 624, in fetch_image
2015-12-01 12:32:08.373 31366 TRACE nova.compute.manager [instance: dd265eed-6869-4e0d-8611-a9fccd216fc1]     max_size=max_size, backend=backend)
2015-12-01 12:32:08.373 31366 TRACE nova.compute.manager [instance: dd265eed-6869-4e0d-8611-a9fccd216fc1]   File "/usr/lib/python2.7/site-packages/nova/virt/images.py", line 104, in fetch_to_raw
2015-12-01 12:32:08.373 31366 TRACE nova.compute.manager [instance: dd265eed-6869-4e0d-8611-a9fccd216fc1]     max_size=max_size)
2015-12-01 12:32:08.373 31366 TRACE nova.compute.manager [instance: dd265eed-6869-4e0d-8611-a9fccd216fc1]   File "/usr/lib/python2.7/site-packages/nova/virt/images.py", line 72, in fetch
2015-12-01 12:32:08.373 31366 TRACE nova.compute.manager [instance: dd265eed-6869-4e0d-8611-a9fccd216fc1]     image_service.download(context, image_id, dst_path=path)
2015-12-01 12:32:08.373 31366 TRACE nova.compute.manager [instance: dd265eed-6869-4e0d-8611-a9fccd216fc1]   File "/usr/lib/python2.7/site-packages/nova/image/glance.py", line 338, in download
2015-12-01 12:32:08.373 31366 TRACE nova.compute.manager [instance: dd265eed-6869-4e0d-8611-a9fccd216fc1]     _reraise_translated_image_exception(image_id)
2015-12-01 12:32:08.373 31366 TRACE nova.compute.manager [instance: dd265eed-6869-4e0d-8611-a9fccd216fc1]   File "/usr/lib/python2.7/site-packages/nova/image/glance.py", line 336, in download
2015-12-01 12:32:08.373 31366 TRACE nova.compute.manager [instance: dd265eed-6869-4e0d-8611-a9fccd216fc1]     image_chunks = self._client.call(context, 1, 'data', image_id)
2015-12-01 12:32:08.373 31366 TRACE nova.compute.manager [instance: dd265eed-6869-4e0d-8611-a9fccd216fc1]   File "/usr/lib/python2.7/site-packages/nova/image/glance.py", line 216, in call
2015-12-01 12:32:08.373 31366 TRACE nova.compute.manager [instance: dd265eed-6869-4e0d-8611-a9fccd216fc1]     return getattr(client.images, method)(*args, **kwargs)
2015-12-01 12:32:08.373 31366 TRACE nova.compute.manager [instance: dd265eed-6869-4e0d-8611-a9fccd216fc1]   File "/usr/lib/python2.7/site-packages/glanceclient/v1/images.py", line 144, in data
2015-12-01 12:32:08.373 31366 TRACE nova.compute.manager [instance: dd265eed-6869-4e0d-8611-a9fccd216fc1]     'GET', '/v1/images/%s' % parse.quote(str(image_id)))
2015-12-01 12:32:08.373 31366 TRACE nova.compute.manager [instance: dd265eed-6869-4e0d-8611-a9fccd216fc1]   File "/usr/lib/python2.7/site-packages/glanceclient/common/http.py", line 328, in raw_request
2015-12-01 12:32:08.373 31366 TRACE nova.compute.manager [instance: dd265eed-6869-4e0d-8611-a9fccd216fc1]     return self._http_request(url, method, **kwargs)
2015-12-01 12:32:08.373 31366 TRACE nova.compute.manager [instance: dd265eed-6869-4e0d-8611-a9fccd216fc1]   File "/usr/lib/python2.7/site-packages/glanceclient/common/http.py", line 264, in _http_request
2015-12-01 12:32:08.373 31366 TRACE nova.compute.manager [instance: dd265eed-6869-4e0d-8611-a9fccd216fc1]     raise exc.from_response(resp, body_str)
2015-12-01 12:32:08.373 31366 TRACE nova.compute.manager [instance: dd265eed-6869-4e0d-8611-a9fccd216fc1] ImageNotFound: Image 6ab3e2ce-c173-43d9-af8c-be2bcf7e05cf could not be found.