Hi,

I deployed Cloudkitty with the following metrics.yml file :

metrics:
  cpu:
    unit: instance
    alt_name: instance
    groupby:
      - id
      - user_id
      - project_id
    metadata:
      - flavor_name
      - flavor_id
      - vcpus
    mutate: NUMBOOL
    extra_args:
      aggregation_method: mean
      resource_type: instance
      force_granularity: 300

  image.size:
    unit: MiB
    factor: 1/1048576
    groupby:
      - id
      - user_id
      - project_id
    metadata:
      - container_format
      - disk_format
    extra_args:
      aggregation_method: mean
      resource_type: image
      force_granularity: 300

  volume.size:
    unit: GiB
    groupby:
      - id
      - user_id
      - project_id
    metadata:
      - volume_type
    extra_args:
      aggregation_method: mean
      resource_type: volume
      force_granularity: 300

I created a service for volume.size following the example here : https://docs.openstack.org/cloudkitty/yoga/user/rating/hashmap.html

I added the user cloudkitty to the admin project and to another project named Project01.

When showing the rates I have 0 rate on the Project01.

For example :

executing this command :  openstack rating dataframes get | grep volume.size

This volume belongs to an instance in the Admin project, as you can see rating is 4.5:

| 2022-11-02T18:25:00 | 2022-11-02T18:30:00 | 31bfb5bcf7b7413da269d7a35a2fe69a | [{'rating': '4.5', 'service': 'volume.size', 'desc': {'volume_type': '246853e3-1215-4147-aef2-54012221ecc9', 'id': '07811807-474a-4eb5-91b5-ce2dcdd7be26', 'project_id': '31bfb5bcf7b7413da269d7a35a2fe69a', 'user_id': '2a3f2478e334473e85527102b76f7a2e'}, 'volume': '3.0', 'rate_value': '1.5000'}, {'rating': '4.5', 'service': 'volume.size', 'desc': {'volume_type': '246853e3-1215-4147-aef2-54012221ecc9', 'id': '8a345711-0486-4733-b8bc-fd1966678aec', 'project_id': '31bfb5bcf7b7413da269d7a35a2fe69a', 'user_id': '2a3f2478e334473e85527102b76f7a2e'}, 'volume': '3.0', 'rate_value': '1.5000'}, {'rating': '4.5', 'service': 'volume.size', 'desc': {'volume_type': '246853e3-1215-4147-aef2-54012221ecc9', 'id': 'afd22819-8faa-47ee-8c09-75290d2cf18e', 'project_id': '31bfb5bcf7b7413da269d7a35a2fe69a', 'user_id': '2a3f2478e334473e85527102b76f7a2e'}, 'volume': '3.0', 'rate_value': '1.5000'}]

This volume belongs to an instance in the Project01 project, as you can see rating is 0.0 :

| 2022-11-03T10:35:00 | 2022-11-03T10:40:00 | 2e80eb3b3d344ef9993065ce689395d9 | [{'rating': '0.0', 'service': 'volume.size', 'desc': {'volume_type': '246853e3-1215-4147-aef2-54012221ecc9', 'id': '1c396d46-8954-4e8c-b3e8-8e5e4eb6aba4', 'project_id': '2e80eb3b3d344ef9993065ce689395d9', 'user_id': 'd9e5696e99954ae1ac87db9cca82c839'}, 'volume': '20.0', 'rate_value': '0.0000'}]

I don't understand why it works for one and not the other?

More info :

(yogavenv) [deployer@rscdeployer ~]$ openstack rating hashmap service list
+------------------------+--------------------------------------+
| Name                   | Service ID                           |
+------------------------+--------------------------------------+
| instance               | 06e17b49-8cd4-4cb9-8965-cb929ee12909 |
| network.incoming.bytes | 634069b2-ca42-4a28-8778-ac69144fcc23 |
| network.outgoing.bytes | 6c1fdaa7-15cb-41b4-be0e-109d64810dde |
| volume.size            | b6934ab1-8326-4281-89b9-f80294430321 |
| image.size             | d3652e08-8645-45fd-b7db-b710ae716876 |
+------------------------+--------------------------------------+

(yogavenv) [deployer@rscdeployer ~]$ openstack rating hashmap mapping list -s b6934ab1-8326-4281-89b9-f80294430321
+--------------------------------------+-------+--------------------------------+------+----------+--------------------------------------+----------+------------+
| Mapping ID                           | Value | Cost                           | Type | Field ID | Service ID                           | Group ID | Project ID |
+--------------------------------------+-------+--------------------------------+------+----------+--------------------------------------+----------+------------+
| f81aea1e-0651-4c0a-b043-496fdd892635 | None  | 1.5000000000000000000000000000 | flat | None     | b6934ab1-8326-4281-89b9-f80294430321 | None     | None       |
+--------------------------------------+-------+--------------------------------+------+----------+--------------------------------------+----------+------------+

Regards.