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[Thierry Carrez <thierry.carrez+lp@xxxxxxxxx>]

** Changed in: nova
       Status: Fix Committed => Fix Released

** Changed in: nova
    Milestone: None => juno-1

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https://bugs.launchpad.net/bugs/1325705

Title:
  Cells - prominent hypervisor version filter bug

Status in OpenStack Compute (Nova):
  Fix Released

Bug description:
  Commit 0c22f71fb338b1aa7c4a2b30555449a464ad3874 introduced a filter
  that allowed the cells scheduler to route instance builds to cells
  with a matching 'prominent' hypervisor version.
  (nova.cells.filters.image_properties.ImagePropertiesFilter).

  This filter has a bug where the set of cell capabilities is mutated
  via set pop().  This causes a race where the filter can fail if it
  runs again before the capabilities list gets repopulated from the
  child cell.

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