openstack启动实例报错No valid host was found

计算节点的nova错误日志：

2020-02-11 17:05:07.817 1295 ERROR nova.virt.libvirt.guest [req-740339df-c3c4-450b-9787-9c7336c461a3 a7756266208f439bbb8324fb22853932 e7af6fe8f68647ab8010beaa7cb440ed - - -] Error launching a defined domain with XML: <domain type='kvm'>
2020-02-11 17:05:07.818 1295 ERROR nova.compute.manager [req-740339df-c3c4-450b-9787-9c7336c461a3 a7756266208f439bbb8324fb22853932 e7af6fe8f68647ab8010beaa7cb440ed - - -] [instance: 8020d30b-33ec-4836-8f61-f23516aa2508] Instance failed to spawn
2020-02-11 17:05:07.818 1295 ERROR nova.compute.manager [instance: 8020d30b-33ec-4836-8f61-f23516aa2508] Traceback (most recent call last):
2020-02-11 17:05:07.818 1295 ERROR nova.compute.manager [instance: 8020d30b-33ec-4836-8f61-f23516aa2508]   File "/usr/lib/python2.7/site-packages/nova/compute/manager.py", line 2229, in _build_resources
2020-02-11 17:05:07.818 1295 ERROR nova.compute.manager [instance: 8020d30b-33ec-4836-8f61-f23516aa2508]     yield resources
2020-02-11 17:05:07.818 1295 ERROR nova.compute.manager [instance: 8020d30b-33ec-4836-8f61-f23516aa2508]   File "/usr/lib/python2.7/site-packages/nova/compute/manager.py", line 2075, in _build_and_run_instance
2020-02-11 17:05:07.818 1295 ERROR nova.compute.manager [instance: 8020d30b-33ec-4836-8f61-f23516aa2508]     block_device_info=block_device_info)
2020-02-11 17:05:07.818 1295 ERROR nova.compute.manager [instance: 8020d30b-33ec-4836-8f61-f23516aa2508]   File "/usr/lib/python2.7/site-packages/nova/virt/libvirt/driver.py", line 2779, in spawn
2020-02-11 17:05:07.818 1295 ERROR nova.compute.manager [instance: 8020d30b-33ec-4836-8f61-f23516aa2508]     block_device_info=block_device_info)
2020-02-11 17:05:07.818 1295 ERROR nova.compute.manager [instance: 8020d30b-33ec-4836-8f61-f23516aa2508]   File "/usr/lib/python2.7/site-packages/nova/virt/libvirt/driver.py", line 4923, in _create_domain_and_network
2020-02-11 17:05:07.818 1295 ERROR nova.compute.manager [instance: 8020d30b-33ec-4836-8f61-f23516aa2508]     xml, pause=pause, power_on=power_on)
2020-02-11 17:05:07.818 1295 ERROR nova.compute.manager [instance: 8020d30b-33ec-4836-8f61-f23516aa2508]   File "/usr/lib/python2.7/site-packages/nova/virt/libvirt/driver.py", line 4854, in _create_domain
2020-02-11 17:05:07.818 1295 ERROR nova.compute.manager [instance: 8020d30b-33ec-4836-8f61-f23516aa2508]     guest.launch(pause=pause)
2020-02-11 17:05:07.818 1295 ERROR nova.compute.manager [instance: 8020d30b-33ec-4836-8f61-f23516aa2508]   File "/usr/lib/python2.7/site-packages/nova/virt/libvirt/guest.py", line 142, in launch
2020-02-11 17:05:07.818 1295 ERROR nova.compute.manager [instance: 8020d30b-33ec-4836-8f61-f23516aa2508]     self._encoded_xml, errors='ignore')
2020-02-11 17:05:07.818 1295 ERROR nova.compute.manager [instance: 8020d30b-33ec-4836-8f61-f23516aa2508]   File "/usr/lib/python2.7/site-packages/oslo_utils/excutils.py", line 220, in __exit__
2020-02-11 17:05:07.818 1295 ERROR nova.compute.manager [instance: 8020d30b-33ec-4836-8f61-f23516aa2508]     self.force_reraise()
2020-02-11 17:05:07.818 1295 ERROR nova.compute.manager [instance: 8020d30b-33ec-4836-8f61-f23516aa2508]   File "/usr/lib/python2.7/site-packages/oslo_utils/excutils.py", line 196, in force_reraise
2020-02-11 17:05:07.818 1295 ERROR nova.compute.manager [instance: 8020d30b-33ec-4836-8f61-f23516aa2508]     six.reraise(self.type_, self.value, self.tb)
2020-02-11 17:05:07.818 1295 ERROR nova.compute.manager [instance: 8020d30b-33ec-4836-8f61-f23516aa2508]   File "/usr/lib/python2.7/site-packages/nova/virt/libvirt/guest.py", line 137, in launch
2020-02-11 17:05:07.818 1295 ERROR nova.compute.manager [instance: 8020d30b-33ec-4836-8f61-f23516aa2508]     return self._domain.createWithFlags(flags)
2020-02-11 17:05:07.818 1295 ERROR nova.compute.manager [instance: 8020d30b-33ec-4836-8f61-f23516aa2508]   File "/usr/lib/python2.7/site-packages/eventlet/tpool.py", line 186, in doit
2020-02-11 17:05:07.818 1295 ERROR nova.compute.manager [instance: 8020d30b-33ec-4836-8f61-f23516aa2508]     result = proxy_call(self._autowrap, f, *args, **kwargs)
2020-02-11 17:05:07.818 1295 ERROR nova.compute.manager [instance: 8020d30b-33ec-4836-8f61-f23516aa2508]   File "/usr/lib/python2.7/site-packages/eventlet/tpool.py", line 144, in proxy_call
2020-02-11 17:05:07.818 1295 ERROR nova.compute.manager [instance: 8020d30b-33ec-4836-8f61-f23516aa2508]     rv = execute(f, *args, **kwargs)
2020-02-11 17:05:07.818 1295 ERROR nova.compute.manager [instance: 8020d30b-33ec-4836-8f61-f23516aa2508]   File "/usr/lib/python2.7/site-packages/eventlet/tpool.py", line 125, in execute
2020-02-11 17:05:07.818 1295 ERROR nova.compute.manager [instance: 8020d30b-33ec-4836-8f61-f23516aa2508]     six.reraise(c, e, tb)
2020-02-11 17:05:07.818 1295 ERROR nova.compute.manager [instance: 8020d30b-33ec-4836-8f61-f23516aa2508]   File "/usr/lib/python2.7/site-packages/eventlet/tpool.py", line 83, in tworker
2020-02-11 17:05:07.818 1295 ERROR nova.compute.manager [instance: 8020d30b-33ec-4836-8f61-f23516aa2508]     rv = meth(*args, **kwargs)
2020-02-11 17:05:07.818 1295 ERROR nova.compute.manager [instance: 8020d30b-33ec-4836-8f61-f23516aa2508]   File "/usr/lib64/python2.7/site-packages/libvirt.py", line 1110, in createWithFlags
2020-02-11 17:05:07.818 1295 ERROR nova.compute.manager [instance: 8020d30b-33ec-4836-8f61-f23516aa2508]     if ret == -1: raise libvirtError ('virDomainCreateWithFlags() failed', dom=self)
2020-02-11 17:05:07.818 1295 ERROR nova.compute.manager [instance: 8020d30b-33ec-4836-8f61-f23516aa2508] libvirtError: internal error: process exited while connecting to monitor: 2020-02-11T09:05:07.623239Z qemu-kvm: -drive file=/var/lib/nova/instances/8020d30b-33ec-4836-8f61-f23516aa2508/disk,format=qcow2,if=none,id=drive-virtio-disk0,cache=none: Could not open '/var/lib/nova/instances/8020d30b-33ec-4836-8f61-f23516aa2508/disk': Permission denied
2020-02-11 17:05:07.818 1295 ERROR nova.compute.manager [instance: 8020d30b-33ec-4836-8f61-f23516aa2508]

控制节点的nova-conductor.log

2020-02-11 17:05:08.365 958 ERROR nova.scheduler.utils [req-740339df-c3c4-450b-9787-9c7336c461a3 a7756266208f439bbb8324fb22853932 e7af6fe8f68647ab8010beaa7cb440ed - - -] [instance: 8020d30b-33ec-4836-8f61-f23516aa2508] 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 1937, in _do_build_and_run_instance\n    filter_properties)\n', u'  File "/usr/lib/python2.7/site-packages/nova/compute/manager.py", line 2127, in _build_and_run_instance\n    instance_uuid=instance.uuid, reason=six.text_type(e))\n', u"RescheduledException: Build of instance 8020d30b-33ec-4836-8f61-f23516aa2508 was re-scheduled: internal error: process exited while connecting to monitor: 2020-02-11T09:05:07.623239Z qemu-kvm: -drive file=/var/lib/nova/instances/8020d30b-33ec-4836-8f61-f23516aa2508/disk,format=qcow2,if=none,id=drive-virtio-disk0,cache=none: Could not open '/var/lib/nova/instances/8020d30b-33ec-4836-8f61-f23516aa2508/disk': Permission denied\n"]
2020-02-11 17:05:08.450 958 WARNING nova.scheduler.utils [req-740339df-c3c4-450b-9787-9c7336c461a3 a7756266208f439bbb8324fb22853932 e7af6fe8f68647ab8010beaa7cb440ed - - -] [instance: 8020d30b-33ec-4836-8f61-f23516aa2508] Setting instance to ERROR state.

dashboard上报错
图片说明

我的网络配置是
图片说明

不知道有没有路过的大师指导这是什么原因啊，在网上找了好多方法没有解决。万分感谢！

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threenewbee 2020-02-12 00:17
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节点没有启动，这个原因有很多啊，你先参考下 https://blog.csdn.net/zhengmx100/article/details/78247955

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openstack启动实例报错No valid host was found

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