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[Lucian Petrut <lpetrut@xxxxxxxxxxxxxxxxxxxxxx>]

Public bug reported:

When the nova-compute service cleans up an instance that still exists on
the host although being deleted from the DB, the according network info
is not properly retrieved.

For this reason, vif ports will not be cleaned up.

In this situation there may also be stale volume connections. Those will
be leaked as well as os-brick attempts to flush those inaccessible
devices, which will fail. As per a recent os-brick change, a 'force'
flag must be set in order to ignore flush errors.

Log: http://paste.openstack.org/raw/620048/

** Affects: nova
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/1714247

Title:
  Cleaning up deleted instances leaks resources

Status in OpenStack Compute (nova):
  New

Bug description:
  When the nova-compute service cleans up an instance that still exists
  on the host although being deleted from the DB, the according network
  info is not properly retrieved.

  For this reason, vif ports will not be cleaned up.

  In this situation there may also be stale volume connections. Those
  will be leaked as well as os-brick attempts to flush those
  inaccessible devices, which will fail. As per a recent os-brick
  change, a 'force' flag must be set in order to ignore flush errors.

  Log: http://paste.openstack.org/raw/620048/

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