ERROR nova.compute.manager [-] [instance: Failure prepping block device

admin

Instance failed to create with the below errors in Juno release using RHEL7 KVM as compute node.

2015-02-28 23:12:05.712 3015 INFO nova.scheduler.client.report [-] Compute_service record updated for ('host7.rhel.com', 'host7.rhel.com') 2015-02-28 23:12:05.967 3015 ERROR nova.compute.manager [-] [instance: ba28b3bf-e68a-4cca-bf61-ca36ef60b27a] Failure prepping block device 2015-02-28 23:12:05.967 3015 TRACE nova.compute.manager [instance: ba28b3bf-e68a-4cca-bf61-ca36ef60b27a] Traceback (most recent call last): 2015-02-28 23:12:05.967 3015 TRACE nova.compute.manager [instance: ba28b3bf-e68a-4cca-bf61-ca36ef60b27a] File "/usr/lib/python2.7/site-packages/nova/compute/manager.p y", line 2211, in _build_resources 2015-02-28 23:12:05.967 3015 TRACE nova.compute.manager [instance: ba28b3bf-e68a-4cca-bf61-ca36ef60b27a] block_device_mapping) 2015-02-28 23:12:05.967 3015 TRACE nova.compute.manager [instance: ba28b3bf-e68a-4cca-bf61-ca36ef60b27a] File "/usr/lib/python2.7/site-packages/nova/compute/manager.p y", line 1780, in _default_block_device_names 2015-02-28 23:12:05.967 3015 TRACE nova.compute.manager [instance: ba28b3bf-e68a-4cca-bf61-ca36ef60b27a] instance.save() 2015-02-28 23:12:05.967 3015 TRACE nova.compute.manager [instance: ba28b3bf-e68a-4cca-bf61-ca36ef60b27a] File "/usr/lib/python2.7/site-packages/nova/objects/base.py", line 189, in wrapper 2015-02-28 23:12:05.967 3015 TRACE nova.compute.manager [instance: ba28b3bf-e68a-4cca-bf61-ca36ef60b27a] ctxt, self, fn.__name__, args, kwargs) 2015-02-28 23:12:05.967 3015 TRACE nova.compute.manager [instance: ba28b3bf-e68a-4cca-bf61-ca36ef60b27a] File "/usr/lib/python2.7/site-packages/nova/conductor/rpcapi. py", line 351, in object_action 2015-02-28 23:12:05.967 3015 TRACE nova.compute.manager [instance: ba28b3bf-e68a-4cca-bf61-ca36ef60b27a] objmethod=objmethod, args=args, kwargs=kwargs) 2015-02-28 23:12:05.967 3015 TRACE nova.compute.manager [instance: ba28b3bf-e68a-4cca-bf61-ca36ef60b27a] File "/usr/lib/python2.7/site-packages/oslo/messaging/rpc/cli ent.py", line 152, in call 2015-02-28 23:12:05.967 3015 TRACE nova.compute.manager [instance: ba28b3bf-e68a-4cca-bf61-ca36ef60b27a] retry=self.retry) 2015-02-28 23:12:05.967 3015 TRACE nova.compute.manager [instance: ba28b3bf-e68a-4cca-bf61-ca36ef60b27a] File "/usr/lib/python2.7/site-packages/oslo/messaging/transpo rt.py", line 90, in _send 2015-02-28 23:12:05.967 3015 TRACE nova.compute.manager [instance: ba28b3bf-e68a-4cca-bf61-ca36ef60b27a] timeout=timeout, retry=retry) 2015-02-28 23:12:05.967 3015 TRACE nova.compute.manager [instance: ba28b3bf-e68a-4cca-bf61-ca36ef60b27a] File "/usr/lib/python2.7/site-packages/oslo/messaging/_driver s/amqpdriver.py", line 408, in send 2015-02-28 23:12:05.967 3015 TRACE nova.compute.manager [instance: ba28b3bf-e68a-4cca-bf61-ca36ef60b27a] retry=retry) 2015-02-28 23:12:05.967 3015 TRACE nova.compute.manager [instance: ba28b3bf-e68a-4cca-bf61-ca36ef60b27a] File "/usr/lib/python2.7/site-packages/oslo/messaging/_driver s/amqpdriver.py", line 399, in _send 2015-02-28 23:12:05.967 3015 TRACE nova.compute.manager [instance: ba28b3bf-e68a-4cca-bf61-ca36ef60b27a] raise result 2015-02-28 23:12:05.967 3015 TRACE nova.compute.manager [instance: ba28b3bf-e68a-4cca-bf61-ca36ef60b27a] RemoteError: Remote error: OperationalError (OperationalError) (1048, "Column 'instance_uuid' cannot be null") 'UPDATE instance_extra SET updated_at=%s, instance_uuid=%s WHERE instance_extra.id = %s' (datetime.datetime(2015, 2, 28, 17, 42, 5, 893469), None, 13L)

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admin

Please run the following command,
  ]/ {4 ?0 ~  Q. m) H% r
, I+ D* [  n  d$ gsu -s /bin/sh -c "nova-manage db sync" nova
Because this error 1048, "Column 'instance_uuid' cannot be null" means, your NOVA database tables are not populated as expected.
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Did you run nova-mange db sync? It looks like the schema for nova has not been created.
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admin

需要再验证，希望大家能补充完善。

admin

升级cinder安装包需要此服务。