I am working with Cinder Multi Backends on an Icehouse installation and have added another backend (Quobyte) to a previously running Cinder/Ceph installation. I can now create QuoByte volumes, but no longer any ceph volumes. The cinder-scheduler log get?s an incorrect number for the free size of the volumes pool and disregards the RBD backend as a viable storage system: 2014-08-21 16:42:49.847 1469 DEBUG cinder.openstack.common.scheduler.filters.capabilities_filter [r...] extra_spec requirement 'rbd' does not match 'quobyte' _satisfies_extra_specs /usr/lib/python2.7/dist-packages/cinder/openstack/common/scheduler/filters/capabilities_filter.py:55 2014-08-21 16:42:49.848 1469 DEBUG cinder.openstack.common.scheduler.filters.capabilities_filter [r...] host 'controller at quobyte': free_capacity_gb: 156395.931061 fails resource_type extra_specs requirements host_passes /usr/lib/python2.7/dist-packages/cinder/openstack/common/scheduler/filters/capabilities_filter.py:68 2014-08-21 16:42:49.848 1469 WARNING cinder.scheduler.filters.capacity_filter [r...-] Insufficient free space for volume creation (requested / avail): 20/8.0 2014-08-21 16:42:49.849 1469 ERROR cinder.scheduler.flows.create_volume [r.] Failed to schedule_create_volume: No valid host was found. here?s our /etc/cinder/cinder.conf ? cut ? [DEFAULT] rootwrap_config = /etc/cinder/rootwrap.conf api_paste_confg = /etc/cinder/api-paste.ini # iscsi_helper = tgtadm volume_name_template = volume-%s # volume_group = cinder-volumes verbose = True auth_strategy = keystone state_path = /var/lib/cinder lock_path = /var/lock/cinder volumes_dir = /var/lib/cinder/volumes rabbit_host=10.2.0.10 use_syslog=False api_paste_config=/etc/cinder/api-paste.ini glance_num_retries=0 debug=True storage_availability_zone=nova glance_api_ssl_compression=False glance_api_insecure=False rabbit_userid=openstack rabbit_use_ssl=False log_dir=/var/log/cinder osapi_volume_listen=0.0.0.0 glance_api_servers=1.2.3.4:9292 rabbit_virtual_host=/ scheduler_driver=cinder.scheduler.filter_scheduler.FilterScheduler default_availability_zone=nova rabbit_hosts=10.2.0.10:5672 control_exchange=openstack rabbit_ha_queues=False glance_api_version=2 amqp_durable_queues=False rabbit_password=secret rabbit_port=5672 rpc_backend=cinder.openstack.common.rpc.impl_kombu enabled_backends=quobyte,rbd default_volume_type=rbd [database] idle_timeout=3600 connection=mysql://cinder:secret at 10.2.0.10/cinder [quobyte] quobyte_volume_url=quobyte://hostname.cloud.example.com/openstack-volumes volume_driver=cinder.volume.drivers.quobyte.QuobyteDriver [rbd-volumes] volume_backend_name=rbd-volumes rbd_pool=volumes rbd_flatten_volume_from_snapshot=False rbd_user=cinder rbd_ceph_conf=/etc/ceph/ceph.conf rbd_secret_uuid=1234-5678-ABCD-?-DEF rbd_max_clone_depth=5 volume_driver=cinder.volume.drivers.rbd.RBDDriver ? cut --- any ideas? cheers Jens-Christian -- SWITCH Jens-Christian Fischer, Peta Solutions Werdstrasse 2, P.O. Box, 8021 Zurich, Switzerland phone +41 44 268 15 15, direct +41 44 268 15 71 jens-christian.fischer at switch.ch http://www.switch.ch http://www.switch.ch/stories
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