cloudos创建虚机失败
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问题描述：
之前在cloudos创建vlan模式的计算节点，后删除重新选择vxlan的主机overlay模式，现创建虚机不成功，状态异常，报以下错误：
在nova-controller容器内部查看日志 ，只有nova-conductor.log有错误，nova-api.log与nova-scheduler.log没有错误
ERROR nova.scheduler.utils [req-432ef8c0-9258-44df-bf92-c7cd3c3915e3 1df71957d770436493a84f24d9344853 9052ae85792143ff955c35c52e8e41bd - default default] [instance: 134696c3-4c29-4850-812e-5f9e48f69d90] Error from last host: cpn-host102rc (node cvknode(CVM)): [u'Traceback (most recent call last):\n', u' File "/usr/lib/python2.7/site-packages/nova/compute/origin_manager.py", line 2468, in _do_build_and_run_instance\n filter_properties)\n', u' File "/usr/lib/python2.7/site-packages/nova/compute/origin_manager.py", line 2711, in _build_and_run_instance\n instance_uuid=instance.uuid, reason=six.text_type(e))\n', u'RescheduledException: Build of instance 134696c3-4c29-4850-812e-5f9e48f69d90 was re-scheduled: CAS network fault.\n']
ERROR nova.scheduler.utils [req-432ef8c0-9258-44df-bf92-c7cd3c3915e3 1df71957d770436493a84f24d9344853 9052ae85792143ff955c35c52e8e41bd - default default] [instance: 134696c3-4c29-4850-812e-5f9e48f69d90] Error from last host: cpn-host102rc (node cvknode1(CVM)): [u'Traceback (most recent call last):\n', u' File "/usr/lib/python2.7/site-packages/nova/compute/origin_manager.py", line 2468, in _do_build_and_run_instance\n filter_properties)\n', u' File "/usr/lib/python2.7/site-packages/nova/compute/origin_manager.py", line 2711, in _build_and_run_instance\n instance_uuid=instance.uuid, reason=six.text_type(e))\n', u'RescheduledException: Build of instance 134696c3-4c29-4850-812e-5f9e48f69d90 was re-scheduled: CAS network fault.\n']
WARNING nova.scheduler.utils [req-432ef8c0-9258-44df-bf92-c7cd3c3915e3 1df71957d770436493a84f24d9344853 9052ae85792143ff955c35c52e8e41bd - default default] Failed to compute_task_build_instances: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance 134696c3-4c29-4850-812e-5f9e48f69d90.: MaxRetriesExceeded: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance 134696c3-4c29-4850-812e-5f9e48f69d90.
WARNING nova.scheduler.utils [req-432ef8c0-9258-44df-bf92-c7cd3c3915e3 1df71957d770436493a84f24d9344853 9052ae85792143ff955c35c52e8e41bd - default default] [instance: 134696c3-4c29-4850-812e-5f9e48f69d90] Setting instance to ERROR state.: MaxRetriesExceeded: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance 134696c3-4c29-4850-812e-5f9e48f69d90.
在nova-compute容器内部查看日志：
ERROR nova.virt.casapi.network [req-432ef8c0-9258-44df-bf92-c7cd3c3915e3 1df71957d770436493a84f24d9344853 9052ae85792143ff955c35c52e8e41bd - default default] fail to get domain uuid, uri:/cas/casrs/nova/domain 2021-04-19 18:28:35.213 5900 ERROR nova.virt.casapi.network [req-432ef8c0-9258-44df-bf92-c7cd3c3915e3 1df71957d770436493a84f24d9344853 9052ae85792143ff955c35c52e8e41bd - default default] fail to get domain uuid! resp.status_code:409,error-code:9500, error-message:REST资源不存在。
2021-04-19 18:28:35.213 5900 ERROR nova.compute.origin_manager [req-432ef8c0-9258-44df-bf92-c7cd3c3915e3 1df71957d770436493a84f24d9344853 9052ae85792143ff955c35c52e8e41bd - default default] [instance: 134696c3-4c29-4850-812e-5f9e48f69d90] Instance failed to spawn: CasNetworkException: CAS network fault. 2021-04-19 18:28:35.213 5900 ERROR nova.compute.origin_manager [instance: 134696c3-4c29-4850-812e-5f9e48f69d90] Traceback (most recent call last):
2021-04-19 18:28:35.213 5900 ERROR nova.compute.origin_manager [instance: 134696c3-4c29-4850-812e-5f9e48f69d90] File "/usr/lib/python2.7/site-packages/nova/compute/origin_manager.py", line 2817, in _build_resources
2021-04-19 18:28:35.213 5900 ERROR nova.compute.origin_manager [instance: 134696c3-4c29-4850-812e-5f9e48f69d90] yield resources 2021-04-19 18:28:35.213 5900 ERROR nova.compute.origin_manager [instance: 134696c3-4c29-4850-812e-5f9e48f69d90] File "/usr/lib/python2.7/site-packages/nova/compute/origin_manager.py", line 2632, in _build_and_run_instance
2021-04-19 18:28:35.213 5900 ERROR nova.compute.origin_manager [instance: 134696c3-4c29-4850-812e-5f9e48f69d90] block_device_info=block_device_info) 2021-04-19 18:28:35.213 5900 ERROR nova.compute.origin_manager [instance: 134696c3-4c29-4850-812e-5f9e48f69d90] File "/usr/lib/python2.7/site-packages/nova/virt/casapi/driver.py", line 344, in spawn
2021-04-19 18:28:35.213 5900 ERROR nova.compute.origin_manager [instance: 134696c3-4c29-4850-812e-5f9e48f69d90] self._vmops.spawn(context,instance,image_meta,injected_files,admin_password,network_info,block_devices,False) 2021-04-19 18:28:35.213 5900 ERROR nova.compute.origin_manager [instance: 134696c3-4c29-4850-812e-5f9e48f69d90] File "/usr/lib/python2.7/site-packages/nova/virt/casapi/vmops.py", line 1154, in spawn
2021-04-19 18:28:35.213 5900 ERROR nova.compute.origin_manager [instance: 134696c3-4c29-4850-812e-5f9e48f69d90] self._network.update_vif_name(vif)
2021-04-19 18:28:35.213 5900 ERROR nova.compute.origin_manager [instance: 134696c3-4c29-4850-812e-5f9e48f69d90] File "/usr/lib/python2.7/site-packages/nova/virt/casapi/network.py", line 164, in update_vif_name
2021-04-19 18:28:35.213 5900 ERROR nova.compute.origin_manager [instance: 134696c3-4c29-4850-812e-5f9e48f69d90] self._update_vif_name(vif) 2021-04-19 18:28:35.213 5900 ERROR nova.compute.origin_manager [instance: 134696c3-4c29-4850-812e-5f9e48f69d90] File "/usr/lib/python2.7/site-packages/nova/virt/casapi/network.py", line 428, in _update_vif_name
2021-04-19 18:28:35.213 5900 ERROR nova.compute.origin_manager [instance: 134696c3-4c29-4850-812e-5f9e48f69d90] 'port_extensions':{'domain':self._get_domain_uuid(),
2021-04-19 18:28:35.213 5900 ERROR nova.compute.origin_manager [instance: 134696c3-4c29-4850-812e-5f9e48f69d90] File "/usr/lib/python2.7/site-packages/nova/virt/casapi/network.py", line 391, in _get_domain_uuid
2021-04-19 18:28:35.213 5900 ERROR nova.compute.origin_manager [instance: 134696c3-4c29-4850-812e-5f9e48f69d90] raise cas_error.CasNetworkException()
2021-04-19 18:28:35.213 5900 ERROR nova.compute.origin_manager [instance: 134696c3-4c29-4850-812e-5f9e48f69d90] CasNetworkException: CAS network fault.
2021-04-19 18:28:35.213 5900 ERROR nova.compute.origin_manager [instance: 134696c3-4c29-4850-812e-5f9e48f69d90]
组网及组网描述：
- 2021-04-19提问
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最佳答案
Failed to compute_task_build_instances: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance 134696c3-4c29-4850-812e-5f9e48f69d90.: MaxRetriesExceeded: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance 134696c3-4c29-4850-812e-5f9e48f69d90.
cas侧连接数应该达上限了。可以在主cvm上执行netstat -anpt | grep tomcat | wc -l 查看tomcat连接数。如果着急恢复，可以在cas侧前台没任务的情况下，后台重启tomcat任务。
- 2021-04-19回答
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目前是第一次在cvm上创建虚机， 查看tomcat连接数为0，感觉和这个没有关系，之前选择vlan模式组网创建过成功了，后来删除计算节点，重新新建选择的vxlan模式的主机overlay，现在在创建就失败了，不清楚是不是需要什么配置
网络出口和经典网络什么的，是否都是在重新添加计算节点后，重新创建的呢？可以在计算节点容器里，执行nuetron agent-list 和nova service-list 看下服务是否正常
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网络出口和经典网络什么的，是否都是在重新添加计算节点后，重新创建的呢？可以在计算节点容器里，执行nuetron agent-list 和nova service-list 看下服务是否正常