Open Stack

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
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