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[Matt Riedemann <mriedem@xxxxxxxxxx>]

Looks like there is probably a bug in the nova v3 api input validation
jsonschema, it must be making length a required attribute in the
request.

** Also affects: nova
   Importance: Undecided
       Status: New

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https://bugs.launchpad.net/bugs/1328582

Title:
  _console_dump getting 400 response for invalid input

Status in OpenStack Compute (Nova):
  Invalid
Status in Tempest:
  Triaged

Bug description:
  We have several timeout related bugs across several projects and
  tests, one is bug 1254890.

  A change was made to dump server console output on timeout here:

  https://review.openstack.org/97812

  However that needs to pass in a length otherwise we get a 400
  response:

  http://logs.openstack.org/30/98530/1/check/check-grenade-
  dsvm/6c88d91/console.html#_2014-06-10_03_50_32_716

  2014-06-10 03:50:32.714 | Captured traceback:
  2014-06-10 03:50:32.714 | ~~~~~~~~~~~~~~~~~~~
  2014-06-10 03:50:32.714 |     Traceback (most recent call last):
  2014-06-10 03:50:32.714 |       File "tempest/api/compute/v3/servers/test_server_rescue.py", line 30, in setUpClass
  2014-06-10 03:50:32.714 |         cls.servers_client.wait_for_server_status(cls.server_id, 'ACTIVE')
  2014-06-10 03:50:32.715 |       File "tempest/services/compute/v3/json/servers_client.py", line 172, in wait_for_server_status
  2014-06-10 03:50:32.715 |         raise_on_error=raise_on_error)
  2014-06-10 03:50:32.715 |       File "tempest/common/waiters.py", line 106, in wait_for_server_status
  2014-06-10 03:50:32.715 |         _console_dump(client, server_id)
  2014-06-10 03:50:32.715 |       File "tempest/common/waiters.py", line 27, in _console_dump
  2014-06-10 03:50:32.715 |         resp, output = client.get_console_output(server_id, None)
  2014-06-10 03:50:32.715 |       File "tempest/services/compute/v3/json/servers_client.py", line 435, in get_console_output
  2014-06-10 03:50:32.715 |         common_schema.get_console_output, length=length)
  2014-06-10 03:50:32.715 |       File "tempest/services/compute/v3/json/servers_client.py", line 211, in action
  2014-06-10 03:50:32.715 |         post_body)
  2014-06-10 03:50:32.715 |       File "tempest/common/rest_client.py", line 209, in post
  2014-06-10 03:50:32.715 |         return self.request('POST', url, extra_headers, headers, body)
  2014-06-10 03:50:32.716 |       File "tempest/common/rest_client.py", line 419, in request
  2014-06-10 03:50:32.716 |         resp, resp_body)
  2014-06-10 03:50:32.716 |       File "tempest/common/rest_client.py", line 468, in _error_checker
  2014-06-10 03:50:32.716 |         raise exceptions.BadRequest(resp_body)
  2014-06-10 03:50:32.716 |     BadRequest: Bad request
  2014-06-10 03:50:32.716 |     Details: {u'message': u"Invalid input for field/attribute length. Value: None. None is not of type 'integer', 'string'", u'code': 400}

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