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[Liusheng <liusheng@xxxxxxxxxx>]

Chris Behrens: thanks, it is.  this bug has been fixed in
https://review.openstack.org/#/c/99400/.

** Changed in: nova
       Status: In Progress => Invalid

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https://bugs.launchpad.net/bugs/1308405

Title:
  reschedule failed because port still in use

Status in OpenStack Compute (Nova):
  Invalid

Bug description:
  
  When booting an instance with a port specified, if the instance spawn faild for libvit error, the instance will be rescheduled, and will raise a "PortInUse" exception.

  To reproduce, we can add "raise Exception" after spawn in
  _build_instance() and restart nova-compute.

  more details plz see:
  Traceback (most recent call last):
    File "/usr/lib64/python2.6/site-packages/nova/compute/manager.py", line 1043, in _build_instance
      set_access_ip=set_access_ip)
    File "/usr/lib64/python2.6/site-packages/nova/compute/manager.py", line 1426, in _spawn
      LOG.exception(_('Instance failed to spawn'), instance=instance)
    File "/usr/lib64/python2.6/site-packages/nova/compute/manager.py", line 1423, in _spawn
      block_device_info)
    File "/usr/lib64/python2.6/site-packages/nova/virt/libvirt/driver.py", line 2083, in spawn
      admin_pass=admin_password)
    File "/usr/lib64/python2.6/site-packages/nova/virt/libvirt/driver.py", line 2480, in _create_image
      net = netutils.get_injected_network_template(network_info)
    File "/usr/lib64/python2.6/site-packages/nova/virt/netutils.py", line 74, in get_injected_network_
      if not (network_info and template):
    File "/usr/lib64/python2.6/site-packages/nova/network/model.py", line 379, in __len__
      return self._sync_wrapper(fn, *args, **kwargs)
    File "/usr/lib64/python2.6/site-packages/nova/network/model.py", line 366, in _sync_wrapper
      self.wait()
    File "/usr/lib64/python2.6/site-packages/nova/network/model.py", line 398, in wait
      self[:] = self._gt.wait()
    File "/usr/lib64/python2.6/site-packages/eventlet/greenthread.py", line 168, in wait
      return self._exit_event.wait()
    File "/usr/lib64/python2.6/site-packages/eventlet/event.py", line 120, in wait
      current.throw(*self._exc)
    File "/usr/lib64/python2.6/site-packages/eventlet/greenthread.py", line 194, in main
      result = function(*args, **kwargs)
    File "/usr/lib64/python2.6/site-packages/nova/compute/manager.py", line 1244, in _allocate_network
      dhcp_options=dhcp_options)
    File "/usr/lib64/python2.6/site-packages/nova/network/neutronv2/api.py", line 243, in allocate_for
      raise exception.PortInUse(port_id=port_id)
  PortInUse: Port faf3aa64-11f8-4fc7-81bc-084098014f4a is still in use.

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