Glance snapshot

2015-09-15 11:34:39.370 31712 ERROR nova.scheduler.utils [req-e8fe3cd4-c35c-4754-9163-313adbdd7ecc 2e36ce44e89f406299cbb5fcb649d699 0f8a0fc59674471e89c8bed6af4d853c - - -] [instance: 1c4bf1d4-5e98-4471-a7e6-440baa6703ba] Error from last host: compute2 (node compute2): [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 1c4bf1d4-5e98-4471-a7e6-440baa6703ba was re-scheduled: None is not of type u'string'\n\nFailed validating u'type' in schema[u'properties'][u'ramdisk_id']:\n    {u'description': u'ID of image stored in Glance that should be used as the ramdisk when booting an AMI-style image.',\n     u'is_base': False,\n     u'pattern': u'^([0-9a-fA-F]){8}-([0-9a-fA-F]){4}-([0-9a-fA-F]){4}-([0-9a-fA-F]){4}-([0-9a-fA-F]){12}$',\n     u'type': u'string'}\n\nOn instance[u'ramdisk_id']:\n    None\n"]
2015-09-15 11:34:39.408 31712 WARNING nova.scheduler.utils [req-e8fe3cd4-c35c-4754-9163-313adbdd7ecc 2e36ce44e89f406299cbb5fcb649d699 0f8a0fc59674471e89c8bed6af4d853c - - -] 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 80, in select_destinations
    raise exception.NoValidHost(reason=reason)

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

2015-09-15 11:34:39.409 31712 WARNING nova.scheduler.utils [req-e8fe3cd4-c35c-4754-9163-313adbdd7ecc 2e36ce44e89f406299cbb5fcb649d699 0f8a0fc59674471e89c8bed6af4d853c - - -] [instance: 1c4bf1d4-5e98-4471-a7e6-440baa6703ba] Setting instance to ERROR state.