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[jichenjc <jichenjc@xxxxxxxxxx>]

** Changed in: nova
       Status: In Progress => Won't Fix

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https://bugs.launchpad.net/bugs/1656256

Title:
  limit=-1 doesn't work

Status in OpenStack Compute (nova):
  Won't Fix

Bug description:
  newton code , we don't allow limit = -1 (API layer call db and

  [root@cmabvt compute] # nova help hypervisor-list
  usage: nova hypervisor-list [--matching <hostname>] [--marker <marker>]
                              [--limit <limit>]

  List hypervisors. (Supported by API versions '2.0' - '2.latest') [hint: use
  '--os-compute-api-version' flag to show help message for proper version]

  Optional arguments:
    --matching <hostname>  List hypervisors matching the given <hostname>. If
                           matching is used limit and marker options will be
                           ignored.
    --marker <marker>      The last hypervisor of the previous page; displays
                           list of hypervisors after "marker".
    --limit <limit>        Maximum number of hypervisors to display. If limit ==
                           -1, all hypervisors will be displayed. If limit is
                           bigger than 'osapi_max_limit' option of Nova API,
                           limit 'osapi_max_limit' will be used instead.
  [root@cmabvt compute] # nova hypervisor-list --limit -1
  ERROR (BadRequest): Invalid input received: limit must be >= 0 (HTTP 400) (Request-ID: req-11889244-903f-446b-a712-241fada50e56)

  this is because we have this validation here

  def _get_int_param(request, param):
      """Extract integer param from request or fail."""
      try:
          int_param = utils.validate_integer(request.GET[param], param,
                                             min_value=0)
      except exception.InvalidInput as e:
          raise webob.exc.HTTPBadRequest(explanation=e.format_message())
      return int_param

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