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[Matt Riedemann <mriedem.os@xxxxxxxxx>]

Public bug reported:

The parsing in cancel_all_events() fails to account for names such as:

network-vif-plugged-ce531f90-199f-48c0-816c

https://github.com/openstack/nova/blob/167023b5074c7cb241b33767d76a116ec95d652c/nova/compute/manager.py#L406

Which can be constructed when registering the event using a tuple of the
event name and tag:

https://github.com/openstack/nova/blob/167023b5074c7cb241b33767d76a116ec95d652c/nova/compute/manager.py#L460-L463

https://github.com/openstack/nova/blob/167023b5074c7cb241b33767d76a116ec95d652c/nova/objects/external_event.py#L51

So we almost need something like that make_key function but more like
parse_key where using the known EVENT_NAMES we can split the event name
to get the name and tag.

** Affects: nova
     Importance: Medium
         Status: Triaged


** Tags: compute

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https://bugs.launchpad.net/bugs/1760303

Title:
  ComputeManager.cleanup_host fails when there are waiting events:
  ValueError: Field value network-vif-plugged-ce531f90-199f-48c0-816c is
  invalid

Status in OpenStack Compute (nova):
  Triaged

Bug description:
  The parsing in cancel_all_events() fails to account for names such as:

  network-vif-plugged-ce531f90-199f-48c0-816c

  https://github.com/openstack/nova/blob/167023b5074c7cb241b33767d76a116ec95d652c/nova/compute/manager.py#L406

  Which can be constructed when registering the event using a tuple of
  the event name and tag:

  https://github.com/openstack/nova/blob/167023b5074c7cb241b33767d76a116ec95d652c/nova/compute/manager.py#L460-L463

  https://github.com/openstack/nova/blob/167023b5074c7cb241b33767d76a116ec95d652c/nova/objects/external_event.py#L51

  So we almost need something like that make_key function but more like
  parse_key where using the known EVENT_NAMES we can split the event
  name to get the name and tag.

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