[Bug 907152] Re: Error: unable to connect to '/var/run/libvirt/libvirt-sock', libvirtd may need to be started: No such file or directory

[Paul Belanger]

v2: Based on SpamapS comments from #ubuntu-server

** Patch added: "nova_2012.1~e4.v2.diff"
   https://bugs.launchpad.net/ubuntu/+source/nova/+bug/907152/+attachment/2830587/+files/nova_2012.1%7Ee4.v2.diff

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Title:
  Error: unable to connect to '/var/run/libvirt/libvirt-sock', libvirtd
  may need to be started: No such file or directory

Status in “nova” package in Ubuntu:
  Triaged

Bug description:
  It looks like there is a race condition between nova-compute-kvm and
  libvirt. We should move the init script into nova-compute-kvm and add
  a dependency on libvirt.  I'll see about updating the package to
  handle this

  ---

  2011-12-20 21:56:47,255 CRITICAL nova [-] unable to connect to '/var/run/libvirt/libvirt-sock', libvirtd may need to be started: No such file or directory
  (nova): TRACE: Traceback (most recent call last):
  (nova): TRACE:   File "/usr/bin/nova-compute", line 49, in <module>
  (nova): TRACE:     service.wait()
  (nova): TRACE:   File "/usr/lib/pymodules/python2.6/nova/service.py", line 357, in wait
  (nova): TRACE:     _launcher.wait()
  (nova): TRACE:   File "/usr/lib/pymodules/python2.6/nova/service.py", line 107, in wait
  (nova): TRACE:     service.wait()
  (nova): TRACE:   File "/usr/lib/pymodules/python2.6/eventlet/greenthread.py", line 166, in wait
  (nova): TRACE:     return self._exit_event.wait()
  (nova): TRACE:   File "/usr/lib/pymodules/python2.6/eventlet/event.py", line 116, in wait
  (nova): TRACE:     return hubs.get_hub().switch()
  (nova): TRACE:   File "/usr/lib/pymodules/python2.6/eventlet/hubs/hub.py", line 177, in switch
  (nova): TRACE:     return self.greenlet.switch()
  (nova): TRACE:   File "/usr/lib/pymodules/python2.6/eventlet/greenthread.py", line 192, in main
  (nova): TRACE:     result = function(*args, **kwargs)
  (nova): TRACE:   File "/usr/lib/pymodules/python2.6/nova/service.py", line 77, in run_server
  (nova): TRACE:     server.start()
  (nova): TRACE:   File "/usr/lib/pymodules/python2.6/nova/service.py", line 149, in start
  (nova): TRACE:     self.manager.update_available_resource(ctxt)
  (nova): TRACE:   File "/usr/lib/pymodules/python2.6/nova/exception.py", line 129, in wrapped
  (nova): TRACE:     raise Error(str(e))
  (nova): TRACE: Error: unable to connect to '/var/run/libvirt/libvirt-sock', libvirtd may need to be started: No such file or directory
  (nova): TRACE:

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