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[John Garbutt <john@xxxxxxxxxxxxxxx>]

We might have to live with this one, because its an incompatible API
change.

** Tags added: api

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

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https://bugs.launchpad.net/bugs/1261964

Title:
  should handle extra parameters as invalid via update_host API

Status in OpenStack Compute (Nova):
  Opinion

Bug description:
  On update_host API(update() in nova/api/openstack/compute/contrib/hosts.py),
  there is a different behavior between JSON request and XML request.

  If JSON request has extra API parameters(not "status", "maintenance_mode"),
  Nova returns a BadRequest response with message "Invalid update setting: <key>".
  But if XML request, Nova does not return a BadRequest response and continues
  its work.

  This behavior seems wrong from the viewpoint of API consistency.

  
  Note:
  This is due to HostUpdateDeserializer class, the class' method ignores extra API
  parameters and deserializes right parameters only.
  This difference happens in Nova v2 API, and it has been fixed in Nova v3 API.

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