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[David Wilde <2020765@xxxxxxxxxxxxxxxxxx>]

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

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https://bugs.launchpad.net/bugs/2020765

Title:
  random unauthorized error

Status in OpenStack Identity (keystone):
  Invalid

Bug description:

  Hello openstacker I need you guys help.
  I've tried live migrated hypervisor to another one.
  I've faced unauthorized error message. After that, I tried one more  time and I got new error message. It was "Binding failed for port b9bff40a-6794-4c6d-86a3-ccce8911ee51 and host . Error: (409 {"NeutronError": {"type": "PortBindingAlreadyExists", "message": "Binding for port b9bff40a-6794-4c6d-86a3-ccce8911ee51 on host  already exists.", "detail": ""}})". However, I restarted all neutron, nova daemons. It was not fixed. I decided to created new network interfaces which are same MAC addresses and IP. The issue was fixed, but I encounter another issue after creating new interfaces. Cinder-volume status reserved, so I typed "cinder attachment-complete" and finally I could live migrate instances.
  Any Idea why I got random unauthorized error for primary reason? Thank you y'all
  By the way, my server environment are 20.04 wallaby.
  summary, first migration was fine (101 --> 102)
  but when I migrated to 102 -->101, it happened.
  The instances name is molit-was01.
  The all related logs are right above this writing.

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