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[Stephen Finucane <1898554@xxxxxxxxxxxxxxxxxx>]

Public bug reported:

We added support for the 'mixed' CPU policy in Victoria. This required
changes to the 'cpu_policy' field of the 'InstanceNUMACell' object. As
part of that change, we had to check that the consumer of the o.vo
supported the 'mixed' policy and, if not, raise an 'ObjectActionError'.

Unfortunately we're attempting to use a tuple as a string in the string
formatting for that exception's error message. As a result, if you
attempt to actually raise it, you see the following:

  TypeError: not all arguments converted during string formatting

** Affects: nova
     Importance: Low
     Assignee: Stephen Finucane (stephenfinucane)
         Status: Confirmed


** Tags: libvirt numa

** Changed in: nova
       Status: New => Confirmed

** Changed in: nova
   Importance: Undecided => Low

** Changed in: nova
     Assignee: (unassigned) => Stephen Finucane (stephenfinucane)

** Tags added: libvirt numa

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https://bugs.launchpad.net/bugs/1898554

Title:
  Legacy 'InstanceNUMACell' with 'mixed' policy results in 'TypeError'

Status in OpenStack Compute (nova):
  Confirmed

Bug description:
  We added support for the 'mixed' CPU policy in Victoria. This required
  changes to the 'cpu_policy' field of the 'InstanceNUMACell' object. As
  part of that change, we had to check that the consumer of the o.vo
  supported the 'mixed' policy and, if not, raise an
  'ObjectActionError'.

  Unfortunately we're attempting to use a tuple as a string in the
  string formatting for that exception's error message. As a result, if
  you attempt to actually raise it, you see the following:

    TypeError: not all arguments converted during string formatting

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