Comment 3 for bug 1922138

ubuntu@juju-191a8d-1-lxd-1:~$ tail /var/log/cinder/cinder-scheduler.log
2021-04-02 02:49:10.717 207586 INFO cinder.message.api [req-cc778ea8-64ce-4870-abd9-4c7d8ef2e18a 0b03f22042a54f8488ef2a4b785c24d5 c37066870a494056bbacc67d519d7558 - - -] Creating message record for request_id = req-cc778ea8-64ce-4870-abd9-4c7d8ef2e18a
2021-04-02 02:49:10.755 207586 ERROR cinder.scheduler.flows.create_volume [req-cc778ea8-64ce-4870-abd9-4c7d8ef2e18a 0b03f22042a54f8488ef2a4b785c24d5 c37066870a494056bbacc67d519d7558 - - -] Failed to run task cinder.scheduler.flows.create_volume.ScheduleCreateVolumeTask;volume:create: No valid backend was found. No weighed backends available: cinder.exception.NoValidBackend: No valid backend was found. No weighed backends available
2021-04-02 02:51:57.704 207586 WARNING py.warnings [req-783aafef-c024-4da0-b5ee-b2628b04a01f 0b03f22042a54f8488ef2a4b785c24d5 c37066870a494056bbacc67d519d7558 - - -] /usr/lib/python3/dist-packages/pymysql/cursors.py:170: Warning: (3719, "'utf8' is currently an alias for the character set UTF8MB3, but will be an alias for UTF8MB4 in a future release. Please consider using UTF8MB4 in order to be unambiguous.")
  result = self._query(query)

2021-04-02 02:51:57.721 207586 WARNING cinder.scheduler.filters.capacity_filter [req-783aafef-c024-4da0-b5ee-b2628b04a01f 0b03f22042a54f8488ef2a4b785c24d5 c37066870a494056bbacc67d519d7558 - - -] Insufficient free virtual space (0.0GB) to accommodate thin provisioned 1024GB volume on host cinder@cinder-ceph#cinder-ceph.
2021-04-02 02:51:57.721 207586 INFO cinder.scheduler.base_filter [req-783aafef-c024-4da0-b5ee-b2628b04a01f 0b03f22042a54f8488ef2a4b785c24d5 c37066870a494056bbacc67d519d7558 - - -] Filtering removed all hosts for the request with volume ID '17e13104-29ae-4564-8b3d-167d3fe24236'. Filter results: AvailabilityZoneFilter: (start: 1, end: 1), CapacityFilter: (start: 1, end: 0), CapabilitiesFilter: (start: 0, end: 0)
2021-04-02 02:51:57.721 207586 WARNING cinder.scheduler.filter_scheduler [req-783aafef-c024-4da0-b5ee-b2628b04a01f 0b03f22042a54f8488ef2a4b785c24d5 c37066870a494056bbacc67d519d7558 - - -] No weighed backend found for volume with properties: {'id': 'de03abac-2e8b-4d70-a960-bda031d7b1dc', 'name': '__DEFAULT__', 'description': 'Default Volume Type', 'is_public': True, 'projects': [], 'extra_specs': {}, 'qos_specs_id': None, 'created_at': '2021-02-21T07:11:47.000000', 'updated_at': '2021-02-21T07:11:47.000000', 'deleted_at': None, 'deleted': False}
2021-04-02 02:51:57.722 207586 INFO cinder.message.api [req-783aafef-c024-4da0-b5ee-b2628b04a01f 0b03f22042a54f8488ef2a4b785c24d5 c37066870a494056bbacc67d519d7558 - - -] Creating message record for request_id = req-783aafef-c024-4da0-b5ee-b2628b04a01f
2021-04-02 02:51:57.759 207586 ERROR cinder.scheduler.flows.create_volume [req-783aafef-c024-4da0-b5ee-b2628b04a01f 0b03f22042a54f8488ef2a4b785c24d5 c37066870a494056bbacc67d519d7558 - - -] Failed to run task cinder.scheduler.flows.create_volume.ScheduleCreateVolumeTask;volume:create: No valid backend was found. No weighed backends available: cinder.exception.NoValidBackend: No valid backend was found. No weighed backends available