# Pastebin ckEGpfRE
: NoValidHost_Remote: No valid host was found. 
2019-10-11 10:47:32.747 7885 WARNING nova.scheduler.utils [req-7fe9d0fc-a735-4fc9-9283-415da5e68db0 3c109a4413ca4b68b90560093ff2d79c e8fd161dc34c421a979a9e6421f823e9 - default default] [instance: fc01de3a-d70b-449a-be71-c3bac1ee2b52] Setting instance to ERROR state.: NoValidHost_Remote: No valid host was found. 
2019-10-11 10:47:33.444 7881 ERROR nova.conductor.manager [req-6917450c-2a98-4e30-9066-de26ddb37a0a 3c109a4413ca4b68b90560093ff2d79c e8fd161dc34c421a979a9e6421f823e9 - default default] Failed to schedule instances: NoValidHost_Remote: No valid host was found. 
Traceback (most recent call last):

  File "/usr/lib/python2.7/site-packages/oslo_messaging/rpc/server.py", line 229, in inner
    return func(*args, **kwargs)

  File "/usr/lib/python2.7/site-packages/nova/scheduler/manager.py", line 153, in select_destinations
    raise exception.NoValidHost(reason="")

NoValidHost: No valid host was found.
2019-10-11 10:47:33.444 7881 ERROR nova.conductor.manager Traceback (most recent call last):
2019-10-11 10:47:33.444 7881 ERROR nova.conductor.manager   File "/usr/lib/python2.7/site-packages/nova/conductor/manager.py", line 1356, in schedule_and_build_instances
2019-10-11 10:47:33.444 7881 ERROR nova.conductor.manager     instance_uuids, return_alternates=True)
2019-10-11 10:47:33.444 7881 ERROR nova.conductor.manager   File "/usr/lib/python2.7/site-packages/nova/conductor/manager.py", line 810, in _schedule_instances
2019-10-11 10:47:33.444 7881 ERROR nova.conductor.manager     return_alternates=return_alternates)
2019-10-11 10:47:33.444 7881 ERROR nova.conductor.manager   File "/usr/lib/python2.7/site-packages/nova/scheduler/client/query.py", line 42, in select_destinations
2019-10-11 10:47:33.444 7881 ERROR nova.conductor.manager     instance_uuids, return_objects, return_alternates)
2019-10-11 10:47:33.444 7881 ERROR nova.conductor.manager   File "/usr/lib/python2.7/site-packages/nova/scheduler/rpcapi.py", line 160, in select_destinations
2019-10-11 10:47:33.444 7881 ERROR nova.conductor.manager     return cctxt.call(ctxt, 'select_destinations', **msg_args)
2019-10-11 10:47:33.444 7881 ERROR nova.conductor.manager   File "/usr/lib/python2.7/site-packages/oslo_messaging/rpc/client.py", line 178, in call
2019-10-11 10:47:33.444 7881 ERROR nova.conductor.manager     retry=self.retry)
2019-10-11 10:47:33.444 7881 ERROR nova.conductor.manager   File "/usr/lib/python2.7/site-packages/oslo_messaging/transport.py", line 128, in _send
2019-10-11 10:47:33.444 7881 ERROR nova.conductor.manager     retry=retry)
2019-10-11 10:47:33.444 7881 ERROR nova.conductor.manager   File "/usr/lib/python2.7/site-packages/oslo_messaging/_drivers/amqpdriver.py", line 645, in send
2019-10-11 10:47:33.444 7881 ERROR nova.conductor.manager     call_monitor_timeout, retry=retry)
2019-10-11 10:47:33.444 7881 ERROR nova.conductor.manager   File "/usr/lib/python2.7/site-packages/oslo_messaging/_drivers/amqpdriver.py", line 636, in _send
2019-10-11 10:47:33.444 7881 ERROR nova.conductor.manager     raise result
2019-10-11 10:47:33.444 7881 ERROR nova.conductor.manager NoValidHost_Remote: No valid host was found. 
2019-10-11 10:47:33.444 7881 ERROR nova.conductor.manager Traceback (most recent call last):
2019-10-11 10:47:33.444 7881 ERROR nova.conductor.manager 
2019-10-11 10:47:33.444 7881 ERROR nova.conductor.manager   File "/usr/lib/python2.7/site-packages/oslo_messaging/rpc/server.py", line 229, in inner
2019-10-11 10:47:33.444 7881 ERROR nova.conductor.manager     return func(*args, **kwargs)
2019-10-11 10:47:33.444 7881 ERROR nova.conductor.manager 
2019-10-11 10:47:33.444 7881 ERROR nova.conductor.manager   File "/usr/lib/python2.7/site-packages/nova/scheduler/manager.py", line 153, in select_destinations
2019-10-11 10:47:33.444 7881 ERROR nova.conductor.manager     raise exception.NoValidHost(reason="")
2019-10-11 10:47:33.444 7881 ERROR nova.conductor.manager 
2019-10-11 10:47:33.444 7881 ERROR nova.conductor.manager NoValidHost: No valid host was found. 
2019-10-11 10:47:33.444 7881 ERROR nova.conductor.manager