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

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

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https://bugs.launchpad.net/bugs/1243298

Title:
  only meters associated with the first instance reported appear in
  Metric dropdown list

Status in OpenStack Dashboard (Horizon):
  Fix Released
Status in OpenStack Dashboard (Horizon) havana series:
  Fix Committed

Bug description:
  The Compute (Nova) meters list is generally incomplete in the Metric
  dropdown on the Stats tab of the admin/Resource Usage panel.

  The content of this dropdown list also changes from time to time.

  This is because the list is populated from the meter links in the
  *first* resource reported by the ceilometer API with availability zone
  metadata (i.e. indicating a nova instance).

  However, the set of meters associated with instances is not uniform in
  ceilometer (i.e. a certain meter gathered for one resource may not
  necessarily be gathered for another).

  Also the content of this list changes from time to time, depending on
  the order of sample acquisition (as a different instance, with a
  different set of associated meters, may be at the head of the
  resources list reported by the ceilometer API).

  For example, once instances of different flavors have been spun up in
  an openstack deployment, the Metric list will not contain all the
  possible compute meters, nor will it even always be incorrect in the
  same way. Only the 'instance:<flavor>' meter relating to the first
  instance appears in the dropdown, and the identity of this first
  instance may change over time.

  So at any given point in time, only a subset of the compute meters are
  accessible via the dashboard.

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