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[maweilan <1641304@xxxxxxxxxxxxxxxxxx>]

Public bug reported:

what i did:
  Doing some extensions based on attach_interface when I raised an InterfaceAttachFailed in the file vmops.py ,I found the interface would be deleted ,because the variable instance not be refreshed。

what i try to solve:
  added 'instance.refresh()' before deallocate_port_for_instance in the function 'attach_interface' of the file 'manager.py' , the problem would be solved.

** Affects: nova
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/1641304

Title:
  when attach interface failed and raise a NovaException ,the interface
  will be deleted not detach

Status in OpenStack Compute (nova):
  New

Bug description:
  what i did:
    Doing some extensions based on attach_interface when I raised an InterfaceAttachFailed in the file vmops.py ,I found the interface would be deleted ,because the variable instance not be refreshed。

  what i try to solve:
    added 'instance.refresh()' before deallocate_port_for_instance in the function 'attach_interface' of the file 'manager.py' , the problem would be solved.

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