Hello All, I installed octavia on queens with centos 7, but when I create a load balance with the command openstack loadbalancer create --name lb1 --vip-subnet-id admin-subnet I got some errors in octavia worker.log: 2019-01-07 16:16:05.050 85077 ERROR oslo_messaging.rpc.server failures[0].reraise() 2019-01-07 16:16:05.050 85077 ERROR oslo_messaging.rpc.server File "/usr/lib/python2.7/site-packages/taskflow/types/failure.py", line 343, in reraise 2019-01-07 16:16:05.050 85077 ERROR oslo_messaging.rpc.server six.reraise(*self._exc_info) 2019-01-07 16:16:05.050 85077 ERROR oslo_messaging.rpc.server File "/usr/lib/python2.7/site-packages/taskflow/engines/action_engine/executor.py", line 53, in _execute_task 2019-01-07 16:16:05.050 85077 ERROR oslo_messaging.rpc.server result = task.execute(**arguments) 2019-01-07 16:16:05.050 85077 ERROR oslo_messaging.rpc.server File "/usr/lib/python2.7/site-packages/octavia/controller/worker/tasks/compute_tasks.py", line 192, in execute 2019-01-07 16:16:05.050 85077 ERROR oslo_messaging.rpc.server raise exceptions.ComputeBuildException(fault=fault) 2019-01-07 16:16:05.050 85077 ERROR oslo_messaging.rpc.server ComputeBuildException: Failed to build compute instance due to: {u'message': u'Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance 5abc100b-5dc8-43f5-9e1c-e6afea0242d9.', u'code': 500, u'details': u' File "/usr/lib/python2.7/site-packages/nova/conductor/manager.py", line 581, in build_instances\n raise exception.MaxRetriesExceeded(reason=msg)\n', u'created': u'2019-01-07T15:15:59Z'} Anyone could help me, please ? Regards Ignazio