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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:Calibri">From the traceback it looks like nova-compute is running out of a venv.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:Calibri"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:Calibri">You need to activate the venv, most likely via: source /openstack/venvs/nova-12.0.16/.venv/bin/activate then run: pip freeze. If you don’t see the RBD stuff – then that is your issue.
You might be able to fix via: pip install rbd.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:Calibri"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:Calibri">Venv’s are self-contained python installs, so they do not use the system level python packages at all.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:Calibri"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:Calibri">I would also ask for some help in the #openstack-ansible channel on irc as well.<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.5pt;font-family:Calibri;color:black"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.5pt;font-family:Calibri;color:black">___________________________________________________________________<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.5pt;font-family:Calibri;color:black">Kris Lindgren<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.5pt;font-family:Calibri;color:black">Senior Linux Systems Engineer<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.5pt;font-family:Calibri;color:black">GoDaddy</span><span style="font-size:11.0pt;font-family:Calibri"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:Calibri"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span style="font-family:Calibri;color:black">From: </span>
</b><span style="font-family:Calibri;color:black">Grant Morley <grant@absolutedevops.io><br>
<b>Date: </b>Friday, October 21, 2016 at 6:14 AM<br>
<b>To: </b>OpenStack Operators <openstack-operators@lists.openstack.org><br>
<b>Cc: </b>"ian.banks@serverchoice.com" <ian.banks@serverchoice.com><br>
<b>Subject: </b>[Openstack-operators] Instances failing to launch when rbd backed (ansible Liberty setup)<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p>Hi all,<o:p></o:p></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:<o:p></o:p></p>
<p style="margin-bottom:12.0pt">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<o:p></o:p></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)<o:p></o:p></p>
<p>Compute host packages:<o:p></o:p></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<o:p></o:p></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<o:p></o:p></p>
<p>Has anyone come across this before? Ceph is working fine for Glance, it just seems to be with the nova compute hosts.<o:p></o:p></p>
<p>Many thanks,<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">-- <br>
<br>
<o:p></o:p></p>
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<p class="MsoNormal"><span style="font-size:8.5pt;font-family:"Lucida Grande";color:#A8D8FF"><img width="60" height="28" id="_x0000_i1025" src="cid:image001.png@01D22B7F.7756BDA0"></span><o:p></o:p></p>
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<p class="MsoNormal" style="mso-line-height-alt:11.25pt"><span style="font-size:13.5pt;font-family:"Lucida Grande";color:#239DFF">Grant Morley</span><span style="color:#6DBEFF">
<o:p></o:p></span></p>
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<p class="MsoNormal" style="mso-line-height-alt:11.25pt"><span style="font-size:11.5pt;font-family:"Lucida Grande";color:#6DBEFF">Cloud Lead</span><span style="font-family:"Lucida Grande";color:#6DBEFF">
</span><span style="color:#6DBEFF"><o:p></o:p></span></p>
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<p class="MsoNormal" style="line-height:11.25pt"><span style="font-size:10.0pt;font-family:"Lucida Grande";color:#616161">Absolute</span><span style="font-size:10.0pt;font-family:"Lucida Grande";color:#999999">
</span><span style="font-size:10.0pt;font-family:"Lucida Grande";color:#98A5B0">DevOps Ltd</span><span style="font-size:10.0pt;font-family:"Lucida Grande";color:#999999">
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Units H, J & K, Gateway 1000, Whittle Way, Stevenage, Herts, SG1 2FP <o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.0pt;font-family:Helvetica"><a href="http://www.absolutedevops.io/"><span style="font-family:"Lucida Grande";color:#239DFF;text-decoration:none">www.absolutedevops.io</span></a>
<a href="mailto:grant@absolutedevops.i"><span style="font-family:"Lucida Grande";color:#239DFF;text-decoration:none">grant@absolutedevops.io</span></a> 0845 874 0580
<o:p></o:p></span></p>
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