statistics error: Wrong type. Expected '<type 'float'>'

[Yurii Prokulevych]

While trying to get statistics for 'hardware.disk.size.used' meter got an error:

ceilometer statistics -m hardware.disk.size.used -a sum
Invalid input for field/attribute sum. Value: '181871890384'. Wrong type. Expected '<type 'float'>', got '<class 'bson.int64.Int64'>' (HTTP 400) (Request-ID: req-692d8469-c8e1-417a-b749-eb8efe6ac935)

And with '--debug':
ceilometer --debug statistics -m hardware.disk.size.used -a sum [3/175]
DEBUG (session) REQ: curl -g -i -X GET http://192.0.2.6:5000/v2.0 -H "Accept: application/json" -H "User-Agent: python-keystoneclient"
INFO (connectionpool) Starting new HTTP connection (1): 192.0.2.6
DEBUG (connectionpool) "GET /v2.0 HTTP/1.1" 200 335
DEBUG (session) RESP: [200] date: Fri, 04 Mar 2016 09:46:57 GMT vary: X-Auth-Token content-length: 335 content-type: application/json x-openstack-request-id: req-b27ce672-66a1-4ab0-af0f-e2ada1a1379c
RESP BODY: {"version": {"status": "stable", "updated": "2014-04-17T00:00:00Z", "media-types": [{"base": "application/json", "type": "application/vnd.openstack.identity-v2.0+json"}], "id": "v2.0", "links": [{"hre
f": "http://192.0.2.6:5000/v2.0/", "rel": "self"}, {"href": "http://docs.openstack.org/", "type": "text/html", "rel": "describedby"}]}}

DEBUG (v2) Making authentication request to http://192.0.2.6:5000/v2.0/tokens
DEBUG (connectionpool) "POST /v2.0/tokens HTTP/1.1" 200 4243
DEBUG (session) REQ: curl -g -i -X GET http://192.0.2.6:5000/v2.0 -H "Accept: application/json" -H "User-Agent: python-keystoneclient"
INFO (connectionpool) Starting new HTTP connection (1): 192.0.2.6
DEBUG (connectionpool) "GET /v2.0 HTTP/1.1" 200 335
DEBUG (session) RESP: [200] date: Fri, 04 Mar 2016 09:46:57 GMT vary: X-Auth-Token content-length: 335 content-type: application/json x-openstack-request-id: req-d85ddf3c-f18d-4486-b84f-84f3b1ed1491
RESP BODY: {"version": {"status": "stable", "updated": "2014-04-17T00:00:00Z", "media-types": [{"base": "application/json", "type": "application/vnd.openstack.identity-v2.0+json"}], "id": "v2.0", "links": [{"hre
f": "http://192.0.2.6:5000/v2.0/", "rel": "self"}, {"href": "http://docs.openstack.org/", "type": "text/html", "rel": "describedby"}]}}

DEBUG (v2) Making authentication request to http://192.0.2.6:5000/v2.0/tokens
DEBUG (connectionpool) "POST /v2.0/tokens HTTP/1.1" 200 4243
DEBUG (client) REQ: curl -g -i -X 'GET' 'http://192.0.2.6:8777/v2/meters/hardware.disk.size.used/statistics?aggregate.func=sum' -H 'User-Agent: ceilometerclient.openstack.common.apiclient' -H 'X-Auth-Token: {SHA
1}3a9a7b7e428dd1b81c2549b5ebeb58a145c1241f'
INFO (connectionpool) Starting new HTTP connection (1): 192.0.2.6
DEBUG (connectionpool) "GET /v2/meters/hardware.disk.size.used/statistics?aggregate.func=sum HTTP/1.1" 400 213
DEBUG (client) RESP: [400] {'date': 'Fri, 04 Mar 2016 09:47:01 GMT', 'content-length': '213', 'content-type': 'application/json', 'x-openstack-request-id': 'req-e4f9974b-c3f1-482e-9fb5-835e501028be', 'server': '
Werkzeug/0.9.1 Python/2.7.5'}

DEBUG (client) RESP BODY: {"error_message": {"debuginfo": null, "faultcode": "Client", "faultstring": "Invalid input for field/attribute sum. Value: '181571884992'. Wrong type. Expected '<type 'float'>', got '<c
lass 'bson.int64.Int64'>'"}}

DEBUG (client) Request returned failure status: 400
Traceback (most recent call last):
  File "/usr/bin/ceilometer", line 10, in <module>
    sys.exit(main())
  File "/usr/lib/python2.7/site-packages/ceilometerclient/shell.py", line 293, in main
    CeilometerShell().main(args)
  File "/usr/lib/python2.7/site-packages/ceilometerclient/shell.py", line 242, in main
    args.func(client, args)
  File "/usr/lib/python2.7/site-packages/ceilometerclient/v2/shell.py", line 95, in do_statistics
    statistics = cc.statistics.list(**api_args)
  File "/usr/lib/python2.7/site-packages/ceilometerclient/v2/statistics.py", line 58, in list
    q, p))
  File "/usr/lib/python2.7/site-packages/ceilometerclient/common/base.py", line 70, in _list
    resp = self.api.get(url)
  File "/usr/lib/python2.7/site-packages/ceilometerclient/openstack/common/apiclient/client.py", line 355, in get
    return self.client_request("GET", url, **kwargs)
  File "/usr/lib/python2.7/site-packages/ceilometerclient/openstack/common/apiclient/client.py", line 345, in client_request
    self, method, url, **kwargs)
  File "/usr/lib/python2.7/site-packages/ceilometerclient/openstack/common/apiclient/client.py", line 261, in client_request
    method, self.concat_url(endpoint, url), **kwargs)
  File "/usr/lib/python2.7/site-packages/ceilometerclient/openstack/common/apiclient/client.py", line 201, in request
    raise exceptions.from_response(resp, method, url)
ceilometerclient.openstack.common.apiclient.exceptions.BadRequest: Invalid input for field/attribute sum. Value: '181571884992'. Wrong type. Expected '<type 'float'>', got '<class 'bson.int64.Int64'>' (HTTP 400)
 (Request-ID: req-e4f9974b-c3f1-482e-9fb5-835e501028be)

Packages: python-ceilometerclient-1.5.2-1.el7ost.noarch

Regards,
Yurii

[Yurii Prokulevych (yprokule)]

Excerpt from api.log:
2016-03-04 09:56:07.972 11306 DEBUG wsme.api [-] Client-side error: Invalid input for field/attribute sum. Value: '182247054552'. Wrong type. Expected '<type 'float'>', got '<class 'bson.int64.Int64'>' format_exception /usr/lib/python2.7/site-packages/wsme/api.py:221
2016-03-04 09:56:07.974 11306 INFO werkzeug [-] 192.0.2.13 - - [04/Mar/2016 09:56:07] "GET /v2/meters/hardware.disk.size.used/statistics?aggregate.func=sum HTTP/1.1" 400 -