Ceilometer does not know about backup.size

[Christian Zunker]

We are running Rocky with ceilometer 11.0.1
In the ceilometer-agent-notification log, we see these warnings:
WARNING ceilometer.publisher.gnocchi [-] metric backup.size is not handled by Gnocchi

It seem ceilometer only knows about volume.backup.size:
- resource_type: volume
    metrics:
      volume:
      volume.size:
      snapshot.size:
      volume.snapshot.size:
      volume.backup.size:
    attributes:
      display_name: resource_metadata.(display_name|name)
      volume_type: resource_metadata.volume_type
      image_id: resource_metadata.image_id
      instance_id: resource_metadata.instance_id
...
https://github.com/openstack/ceilometer/blob/master/ceilometer/publisher/data/gnocchi_resources.yaml#L231

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/631533

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.opendev.org/631533
Committed: https://git.openstack.org/cgit/openstack/ceilometer/commit/?id=26a7bc33428c4aee288f57709127e6b15fd64916
Submitter: Zuul
Branch: master

commit 26a7bc33428c4aee288f57709127e6b15fd64916
Author: prankul <email address hidden>
Date: Thu Jan 17 20:58:28 2019 +0530

    Added metric backup.size to remove warning in ceilometer-agent-notification log

    Change-Id: I07a129088b1a0063c8885ffc16251be2994f8e77
    Closes-bug: #1810148

[OpenStack Infra (hudson-openstack)]

This issue was fixed in the openstack/ceilometer 13.0.0.0rc1 release candidate.