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[Bug 1183606] Re: qcow image support broken in stable/folsom nova compute

 

** Also affects: nova/folsom
   Importance: Undecided
       Status: New

** Changed in: nova/folsom
     Assignee: (unassigned) => Tim Daly Jr. (timjr)

** Changed in: nova
     Assignee: Tim Daly Jr. (timjr) => (unassigned)

** Changed in: nova
       Status: New => Invalid

** Changed in: nova/folsom
       Status: New => Confirmed

** Changed in: nova/folsom
   Importance: Undecided => Critical

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https://bugs.launchpad.net/bugs/1183606

Title:
  qcow image support broken in stable/folsom nova compute

Status in OpenStack Compute (Nova):
  Invalid
Status in OpenStack Compute (nova) folsom series:
  Confirmed

Bug description:
  Nova compute now tries to run qemu-img info on base images before it
  has downloaded them, resulting in an exception.  If the image has
  already been cached, you won't see it.  It looks like the bug was
  introduced by this security fix:
  https://bugs.launchpad.net/nova/folsom/+bug/1177830

  This is the exception:

    File "/home/timjr/openstack/nova/app/nova/compute/manager.py", line 191, in decorated_function
      return function(self, context, *args, **kwargs)
    File "/home/timjr/openstack/nova/app/nova/compute/manager.py", line 839, in run_instance
      do_run_instance()
    File "/home/timjr/openstack/nova/app/nova/utils.py", line 803, in inner
      retval = f(*args, **kwargs)
    File "/home/timjr/openstack/nova/app/nova/compute/manager.py", line 838, in do_run_instance
      admin_password, is_first_time, instance)
    File "/home/timjr/openstack/nova/app/nova/compute/manager.py", line 529, in _run_instance
      self._set_instance_error_state(context, instance[\'uuid\'])
    File "/usr/lib64/python2.6/contextlib.py", line 23, in __exit__
      self.gen.next()
    File "/home/timjr/openstack/nova/app/nova/compute/manager.py", line 517, in _run_instance
      is_first_time, request_spec, filter_properties)
    File "/home/timjr/openstack/nova/app/nova/compute/manager.py", line 503, in _run_instance
      injected_files, admin_password)
    File "/home/timjr/openstack/nova/app/nova/compute/manager.py", line 756, in _spawn
      block_device_info)
    File "/home/timjr/openstack/nova/app/nova/exception.py", line 117, in wrapped
      temp_level, payload)
    File "/usr/lib64/python2.6/contextlib.py", line 23, in __exit__
      self.gen.next()
    File "/home/timjr/openstack/nova/app/nova/exception.py", line 92, in wrapped
      return f(*args, **kw)
    File "/home/timjr/openstack/nova/app/nova/virt/libvirt/driver.py", line 1099, in spawn
      admin_pass=admin_password)
    File "/home/timjr/openstack/nova/app/nova/virt/libvirt/driver.py", line 1365, in _create_image
      project_id=instance[\'project_id\'])
    File "/home/timjr/openstack/nova/app/nova/virt/libvirt/imagebackend.py", line 131, in cache
      *args, **kwargs)
    File "/home/timjr/openstack/nova/app/nova/virt/libvirt/imagebackend.py", line 181, in create_image
      if size and size < disk.get_disk_size(base):
    File "/home/timjr/openstack/nova/app/nova/virt/disk/api.py", line 115, in get_disk_size
      size = images.qemu_img_info(path)[\'virtual size\']
    File "/home/timjr/openstack/nova/app/nova/virt/images.py", line 50, in qemu_img_info
      \'qemu-img\', \'info\', path)
    File "/home/timjr/openstack/nova/app/nova/utils.py", line 210, in execute
      cmd=\' \'.join(cmd))

  I have a fix I'll submit.

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