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<p>Hi all,</p>
<p>We have a openstack-ansible setup and have ceph installed for the
backend. However whenever we try and launch a new instance it
fails to launch and we get the following error:</p>
<p>2016-10-21 12:08:06.241 70661 INFO nova.virt.libvirt.driver
[req-79811c40-8394-4e33-b16d-ff5fa7341b6a
41c60f65ae914681b6a6ca27a42ff780 324844c815084205995aff10b03a85e1
- - -] [instance: 5633d98e-5f79-4c13-8d45-7544069f0e6f] Creating
image<br>
2016-10-21 12:08:06.242 70661 ERROR nova.compute.manager
[req-79811c40-8394-4e33-b16d-ff5fa7341b6a
41c60f65ae914681b6a6ca27a42ff780 324844c815084205995aff10b03a85e1
- - -] [instance: 5633d98e-5f79-4c13-8d45-7544069f0e6f] Instance
failed to spawn<br>
2016-10-21 12:08:06.242 70661 ERROR nova.compute.manager
[instance: 5633d98e-5f79-4c13-8d45-7544069f0e6f] Traceback (most
recent call last):<br>
2016-10-21 12:08:06.242 70661 ERROR nova.compute.manager
[instance: 5633d98e-5f79-4c13-8d45-7544069f0e6f] File
"/openstack/venvs/nova-12.0.16/lib/python2.7/site-packages/nova/compute/manager.py",
line 2156, in _build_resources<br>
2016-10-21 12:08:06.242 70661 ERROR nova.compute.manager
[instance: 5633d98e-5f79-4c13-8d45-7544069f0e6f] yield
resources<br>
2016-10-21 12:08:06.242 70661 ERROR nova.compute.manager
[instance: 5633d98e-5f79-4c13-8d45-7544069f0e6f] File
"/openstack/venvs/nova-12.0.16/lib/python2.7/site-packages/nova/compute/manager.py",
line 2009, in _build_and_run_instance<br>
2016-10-21 12:08:06.242 70661 ERROR nova.compute.manager
[instance: 5633d98e-5f79-4c13-8d45-7544069f0e6f]
block_device_info=block_device_info)<br>
2016-10-21 12:08:06.242 70661 ERROR nova.compute.manager
[instance: 5633d98e-5f79-4c13-8d45-7544069f0e6f] File
"/openstack/venvs/nova-12.0.16/lib/python2.7/site-packages/nova/virt/libvirt/driver.py",
line 2527, in spawn<br>
2016-10-21 12:08:06.242 70661 ERROR nova.compute.manager
[instance: 5633d98e-5f79-4c13-8d45-7544069f0e6f]
admin_pass=admin_password)<br>
2016-10-21 12:08:06.242 70661 ERROR nova.compute.manager
[instance: 5633d98e-5f79-4c13-8d45-7544069f0e6f] File
"/openstack/venvs/nova-12.0.16/lib/python2.7/site-packages/nova/virt/libvirt/driver.py",
line 2939, in _create_image<br>
2016-10-21 12:08:06.242 70661 ERROR nova.compute.manager
[instance: 5633d98e-5f79-4c13-8d45-7544069f0e6f] backend =
image('disk')<br>
2016-10-21 12:08:06.242 70661 ERROR nova.compute.manager
[instance: 5633d98e-5f79-4c13-8d45-7544069f0e6f] File
"/openstack/venvs/nova-12.0.16/lib/python2.7/site-packages/nova/virt/libvirt/driver.py",
line 2884, in image<br>
2016-10-21 12:08:06.242 70661 ERROR nova.compute.manager
[instance: 5633d98e-5f79-4c13-8d45-7544069f0e6f] fname +
suffix, image_type)<br>
2016-10-21 12:08:06.242 70661 ERROR nova.compute.manager
[instance: 5633d98e-5f79-4c13-8d45-7544069f0e6f] File
"/openstack/venvs/nova-12.0.16/lib/python2.7/site-packages/nova/virt/libvirt/imagebackend.py",
line 967, in image<br>
2016-10-21 12:08:06.242 70661 ERROR nova.compute.manager
[instance: 5633d98e-5f79-4c13-8d45-7544069f0e6f] return
backend(instance=instance, disk_name=disk_name)<br>
2016-10-21 12:08:06.242 70661 ERROR nova.compute.manager
[instance: 5633d98e-5f79-4c13-8d45-7544069f0e6f] File
"/openstack/venvs/nova-12.0.16/lib/python2.7/site-packages/nova/virt/libvirt/imagebackend.py",
line 748, in __init__<br>
2016-10-21 12:08:06.242 70661 ERROR nova.compute.manager
[instance: 5633d98e-5f79-4c13-8d45-7544069f0e6f]
rbd_user=self.rbd_user)<br>
2016-10-21 12:08:06.242 70661 ERROR nova.compute.manager
[instance: 5633d98e-5f79-4c13-8d45-7544069f0e6f] File
"/openstack/venvs/nova-12.0.16/lib/python2.7/site-packages/nova/virt/libvirt/storage/rbd_utils.py",
line 117, in __init__<br>
2016-10-21 12:08:06.242 70661 ERROR nova.compute.manager
[instance: 5633d98e-5f79-4c13-8d45-7544069f0e6f] raise
RuntimeError(_('rbd python libraries not found'))<br>
2016-10-21 12:08:06.242 70661 ERROR nova.compute.manager
[instance: 5633d98e-5f79-4c13-8d45-7544069f0e6f] RuntimeError: rbd
python libraries not found<br>
<br>
</p>
<p>It moans about the rbd python libraries not being found, however
all of the rbd libraries appear to be installed fine via apt. ( We
are running Ubuntu)</p>
<p>Compute host packages:<br>
</p>
<p>dpkg -l | grep ceph<br>
ii ceph-common
10.2.3-1trusty amd64 common
utilities to mount and interact with a ceph storage cluster<br>
ii libcephfs1
10.2.3-1trusty amd64 Ceph
distributed file system client library<br>
ii python-ceph
10.2.3-1trusty amd64 Meta-package
for python libraries for the Ceph libraries<br>
ii python-cephfs
10.2.3-1trusty amd64 Python
libraries for the Ceph libcephfs library</p>
<p> dpkg -l | grep rbd<br>
ii librbd1
10.2.3-1trusty amd64 RADOS block
device client library<br>
ii python-rbd
10.2.3-1trusty amd64 Python
libraries for the Ceph librbd library<br>
</p>
<p>Has anyone come across this before? Ceph is working fine for
Glance, it just seems to be with the nova compute hosts.</p>
<p>Many thanks,<br>
</p>
<br>
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