2015-08-21 04:29:47.387 10346 ERROR nova.scheduler.utils [req-40522932-8f33-48eb-bf78-e627b2c5af84 f61f0910e176438ebcd003eb0725f2f4 85aa4ef08044470dab1608395e5cac26 - - -] [instance: baab9ba5-80e8-45f7-b86a-8ac3ce8ba944] Error from last host: compute (node compute): [u'Traceback (most recent call last):\n', u'  File "/usr/lib/python2.7/site-packages/nova/compute/manager.py", line 2219, in _do_build_and_run_instance\n    filter_properties)\n', u'  File "/usr/lib/python2.7/site-packages/nova/compute/manager.py", line 2362, in _build_and_run_instance\n    instance_uuid=instance.uuid, reason=six.text_type(e))\n', u'RescheduledException: Build of instance baab9ba5-80e8-45f7-b86a-8ac3ce8ba944 was re-scheduled: Unexpected vif_type=binding_failed\n']
2015-08-21 04:29:47.393 10346 INFO oslo_messaging._drivers.impl_rabbit [req-40522932-8f33-48eb-bf78-e627b2c5af84 f61f0910e176438ebcd003eb0725f2f4 85aa4ef08044470dab1608395e5cac26 - - -] Connecting to AMQP server on controller:5672
2015-08-21 04:29:47.410 10346 INFO oslo_messaging._drivers.impl_rabbit [req-40522932-8f33-48eb-bf78-e627b2c5af84 f61f0910e176438ebcd003eb0725f2f4 85aa4ef08044470dab1608395e5cac26 - - -] Connected to AMQP server on controller:5672
2015-08-21 04:29:47.437 10346 WARNING nova.scheduler.utils [req-40522932-8f33-48eb-bf78-e627b2c5af84 f61f0910e176438ebcd003eb0725f2f4 85aa4ef08044470dab1608395e5cac26 - - -] Failed to compute_task_build_instances: No valid host was found. There are not enough hosts available.
Traceback (most recent call last):

  File "/usr/lib/python2.7/site-packages/oslo_messaging/rpc/server.py", line 142, in inner
    return func(*args, **kwargs)

  File "/usr/lib/python2.7/site-packages/nova/scheduler/manager.py", line 86, in select_destinations
    filter_properties)

  File "/usr/lib/python2.7/site-packages/nova/scheduler/filter_scheduler.py", line 88, in select_destinations
    raise exception.NoValidHost(reason=reason)

NoValidHost: No valid host was found. There are not enough hosts available.

2015-08-21 04:29:47.437 10346 WARNING nova.scheduler.utils [req-40522932-8f33-48eb-bf78-e627b2c5af84 f61f0910e176438ebcd003eb0725f2f4 85aa4ef08044470dab1608395e5cac26 - - -] [instance: baab9ba5-80e8-45f7-b86a-8ac3ce8ba944] Setting instance to ERROR state.