I am install openstack controller node for one machtion, and Another metchion running nova-compute only. so I am running controller node cinder will got error.I clearly meantion it  which service gor error, so please help me.cat /var/log/cinder/cinder-backup.log1) ERROR cinder.service [-] Recovered model server connection!2) 2014-11-28 12:43:35.415 4628 ERROR cinder.openstack.common.rpc.common AMQP server on 10.192.1.126:5672 is unreachable: [Errno 111] ECONNREFUSED. Trying again in 1 seconds.3) ERROR cinder.brick.local_dev.lvm Unable to locate Volume Group cinder-volumes4) ERROR cinder.backup.manager  Error encountered during initialization of driver: LVMISCSIDriver5) ERROR cinder.backup.manager  Bad or unexpected response from the storage volume backend API: Volume Group cinder-volumes does not existscheduler:1) ERROR cinder.service [-] Recovered model server connection!2) ERROR cinder.volume.flows.create_volume Failed to schedule_create_volume: No valid host was found. 
how to solve the error in cinder on openstack havana?
ubuntu;openstack