can't create volume backup with ceph

[Sergei Chipiga]

Build:
- mos9.0#253
- Ceph RBD for volumes (Cinder)
- Ceph RadosGW for objects (Swift API)
- Ceph RBD for ephemeral volumes (Nova)
- Ceph RBD for images (Glance)
- 1 node: controller
- 2 nodes: compute + ceph

URL:
- http://172.16.57.68/

steps:
- login as admin
- go to Project -> Volumes
- create a volume with volume source - "Image", image as a source - "TestVM (21.5 MB)", type - "volumes_ceph"
- click drop down menu in column "Actions" for created volume
- click item "Create backup"
- fill backup name and click button "Create Volume Backup"

Expected result:
- Backup is created

Actual result:
- Backup is failed with error "Error: Unable to create volume backup."

[Bug Checker Bot (bug-checker)]

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[Timur Sufiev (tsufiev-x)]

After rebooting the cluster it is possible to create Volume Backups again in Horizon. Need more details.

[Sergei Chipiga (schipiga)]

some logs, seems touching that:

2016-05-06 14:23:32,140 31877 WARNING horizon.exceptions Recoverable error: Policy doesn't allow consistencygroup:get_all to be performed. (HTTP 403) (Request-ID: req-26abefe6-ef2a-43d2-b449-2dd64cb1cd9d)
2016-05-06 14:23:32,693 31876 DEBUG horizon.tables.base The attribute description doesn't exist on <Volume: {'status': u'deleting', 'description': None, 'availability_zone': u'nova', 'bootable': u'false', 'encrypted': False, 'created_at': u'2016-05-06T13:14:19.000000', 'os-vol-tenant-attr:tenant_id': u'25998cc47a094b4984eafb88a35ecd49', 'transfer': None, 'volume_type': None, 'name': u'd1c1c61b-345c-4e83-b0d6-8364f17c367c', 'attachments': [], 'os-vol-host-attr:host': u'gfdgdf', 'consistencygroup_id': None, 'source_volid': None, 'snapshot_id': None, 'metadata': {}, 'id': u'd1c1c61b-345c-4e83-b0d6-8364f17c367c', 'size': 0}>.

[Sergei Chipiga (schipiga)]

and found that:

2016-05-06 14:34:39,048 31876 WARNING horizon.exceptions Recoverable error: Service cinder-backup could not be found. (HTTP 500) (Request-ID: req-ca3b8045-8711-4f28-8481-0600b927fb00)

[Timur Sufiev (tsufiev-x)]

The bug clearly seems to be in a Cinder's domain.

[Sergei Chipiga (schipiga)]

As I found, that there is a cinder bug about that https://bugs.launchpad.net/fuel/+bug/1568803, that after deploy cinder services are down.
But after cluster reboot, they can be up together. Timur, I suppose this bug is duplicate.