普通vlan无网络无安全的cloudos+cas环境。
通过cloudos下发虚拟机,在cas管理平台可以看到虚拟机开始创建,但最终虚拟机没有创建成功,被删除了。
这个错误,创建虚拟机的指令已经下发到计算节点,因此需要到计算节点容器查看计算节点日志nova-compute.log。
搜索虚拟机的UUID发现如下错误。
2018-05-14 12:56:47.952 517 ERROR nova.virt.casapi.vmops [req-baf7ada7-aafa-4941-a30a-14fb163e0d76 beaae70caf26465fa30f83fe428fc245 ede019714b3e4d3ba9587369db870546 -
- -] fail to config the instance[uuid:d8f94e75-728b-42c3-ad48-5d1f82572600,name:rjqyhc-41],resp.status_code:409,error-code:20655, error-message:未知异常(错误码:20655
)。
2018-05-14 12:56:47.953 517 ERROR nova.compute.manager [req-baf7ada7-aafa-4941-a30a-14fb163e0d76 beaae70caf26465fa30f83fe428fc245 ede019714b3e4d3ba9587369db870546 - -
-] [instance: d8f94e75-728b-42c3-ad48-5d1f82572600] Instance failed to spawn
2018-05-14 12:56:47.953 517 ERROR nova.compute.manager [instance: d8f94e75-728b-42c3-ad48-5d1f82572600] Traceback (most recent call last):
2018-05-14 12:56:47.953 517 ERROR nova.compute.manager [instance: d8f94e75-728b-42c3-ad48-5d1f82572600] File "/usr/lib/python2.7/site-packages/nova/compute/manager.p
y", line 2294, in _build_resources
2018-05-14 12:56:47.953 517 ERROR nova.compute.manager [instance: d8f94e75-728b-42c3-ad48-5d1f82572600] yield resources
2018-05-14 12:56:47.953 517 ERROR nova.compute.manager [instance: d8f94e75-728b-42c3-ad48-5d1f82572600] File "/usr/lib/python2.7/site-packages/nova/compute/manager.p
y", line 2140, in _build_and_run_instance
2018-05-14 12:56:47.953 517 ERROR nova.compute.manager [instance: d8f94e75-728b-42c3-ad48-5d1f82572600] block_device_info=block_device_info)
2018-05-14 12:56:47.953 517 ERROR nova.compute.manager [instance: d8f94e75-728b-42c3-ad48-5d1f82572600] File "/usr/lib/python2.7/site-packages/nova/virt/casapi/drive
r.py", line 217, in spawn
2018-05-14 12:56:47.953 517 ERROR nova.compute.manager [instance: d8f94e75-728b-42c3-ad48-5d1f82572600] admin_password,network_info,block_device_mapping,False,Fals
e)
2018-05-14 12:56:47.953 517 ERROR nova.compute.manager [instance: d8f94e75-728b-42c3-ad48-5d1f82572600] File "/usr/lib/python2.7/site-packages/nova/virt/casapi/vmops
.py", line 310, in spawn
2018-05-14 12:56:47.953 517 ERROR nova.compute.manager [instance: d8f94e75-728b-42c3-ad48-5d1f82572600] _config_vm()
2018-05-14 12:56:47.953 517 ERROR nova.compute.manager [instance: d8f94e75-728b-42c3-ad48-5d1f82572600] File "/usr/lib/python2.7/site-packages/nova/virt/casapi/vmops
.py", line 305, in _config_vm
2018-05-14 12:56:47.953 517 ERROR nova.compute.manager [instance: d8f94e75-728b-42c3-ad48-5d1f82572600] raise cas_error.CasVmException()
2018-05-14 12:56:47.953 517 ERROR nova.compute.manager [instance: d8f94e75-728b-42c3-ad48-5d1f82572600] CasVmException: CAS vm fault.
2018-05-14 12:56:47.953 517 ERROR nova.compute.manager [instance: d8f94e75-728b-42c3-ad48-5d1f82572600]
2018-05-14 12:56:47.954 517 INFO nova.compute.manager [req-baf7ada7-aafa-4941-a30a-14fb163e0d76 beaae70caf26465fa30f83fe428fc245 ede019714b3e4d3ba9587369db870546 - - -
] [instance: d8f94e75-728b-42c3-ad48-5d1f82572600] Terminating instance
这种错误,cas返回错误,需要检查cas配置。
在检查cas配置时,发现有部分cvk未配置业务交换机。
而创建虚拟机指令下发时,由cvm调度选择cvk安装,由于cvk上没有业务交换机,导致虚拟机无法配置,最终被删除。
解决方法也很简单,只需要给集群下的所有安装业务交换机即可。
总结:在开局时,请严格按照开局指导进行,避免不必要的错误。
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