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背景

Openstack各功能正常，使用其它鏡像創建云硬盤并用來啟動云主機也正常，但是就是這個鏡像有問題。

報錯信息

dashboard頁面上的錯誤：

No valid host was found. Exceeded max scheduling attempts 3 for instance 345339f1-0a52-42b3-904b-0d3065b5329b. Last exception: [u'Traceback (most recent call last):\n', u' File "/usr/lib/python2.7/site-packages/nova/compute/manager.py", line 2248, in _do

錯誤描述不清晰，查找錯誤日志

# view nova-compute.log

?[instance: ae58a0a8-f197-4099-93db-36d76a696d63] Instance fail
ed to spawn
2016-07-18 16:40:24.930 1067239 TRACE nova.compute.manager [instance: ae58a0a8-f197-4099-93db-36d76a696d63] Traceback (most recent call last):
2016-07-18 16:40:24.930 1067239 TRACE nova.compute.manager [instance: ae58a0a8-f197-4099-93db-36d76a696d63]?? File "/usr/lib/python2.7/site-packages/nova/compute/manager.py", line 2473, in _build_resources
2016-07-18 16:40:24.930 1067239 TRACE nova.compute.manager [instance: ae58a0a8-f197-4099-93db-36d76a696d63]???? yield resources
2016-07-18 16:40:24.930 1067239 TRACE nova.compute.manager [instance: ae58a0a8-f197-4099-93db-36d76a696d63]?? File "/usr/lib/python2.7/site-packages/nova/compute/manager.py", line 2345, in _build_and_run_instance
2016-07-18 16:40:24.930 1067239 TRACE nova.compute.manager [instance: ae58a0a8-f197-4099-93db-36d76a696d63]???? block_device_info=block_device_info)
2016-07-18 16:40:24.930 1067239 TRACE nova.compute.manager [instance: ae58a0a8-f197-4099-93db-36d76a696d63]?? File "/usr/lib/python2.7/site-packages/nova/virt/libvirt/driver.py", line 2388, in spawn
2016-07-18 16:40:24.930 1067239 TRACE nova.compute.manager [instance: ae58a0a8-f197-4099-93db-36d76a696d63]???? write_to_disk=True)
2016-07-18 16:40:24.930 1067239 TRACE nova.compute.manager [instance: ae58a0a8-f197-4099-93db-36d76a696d63]?? File "/usr/lib/python2.7/site-packages/nova/virt/libvirt/driver.py", line 4175, in _get_guest_xml
2016-07-18 16:40:24.930 1067239 TRACE nova.compute.manager [instance: ae58a0a8-f197-4099-93db-36d76a696d63]???? network_info_str = str(network_info)
2016-07-18 16:40:24.930 1067239 TRACE nova.compute.manager [instance: ae58a0a8-f197-4099-93db-36d76a696d63]?? File "/usr/lib/python2.7/site-packages/nova/network/model.py", line 480, in __str__
2016-07-18 16:40:24.930 1067239 TRACE nova.compute.manager [instance: ae58a0a8-f197-4099-93db-36d76a696d63]???? return self._sync_wrapper(fn, *args, **kwargs)
2016-07-18 16:40:24.930 1067239 TRACE nova.compute.manager [instance: ae58a0a8-f197-4099-93db-36d76a696d63]?? File "/usr/lib/python2.7/site-packages/nova/network/model.py", line 463, in _sync_wrapper
2016-07-18 16:40:24.930 1067239 TRACE nova.compute.manager [instance: ae58a0a8-f197-4099-93db-36d76a696d63]???? self.wait()
2016-07-18 16:40:24.930 1067239 TRACE nova.compute.manager [instance: ae58a0a8-f197-4099-93db-36d76a696d63]?? File "/usr/lib/python2.7/site-packages/nova/network/model.py", line 495, in wait
2016-07-18 16:40:24.930 1067239 TRACE nova.compute.manager [instance: ae58a0a8-f197-4099-93db-36d76a696d63]???? self[:] = self._gt.wait()
2016-07-18 16:40:24.930 1067239 TRACE nova.compute.manager [instance: ae58a0a8-f197-4099-93db-36d76a696d63]?? File "/usr/lib/python2.7/site-packages/eventlet/greenthread.py", line 175, in wait
2016-07-18 16:40:24.930 1067239 TRACE nova.compute.manager [instance: ae58a0a8-f197-4099-93db-36d76a696d63]???? return self._exit_event.wait()
2016-07-18 16:40:24.930 1067239 TRACE nova.compute.manager [instance: ae58a0a8-f197-4099-93db-36d76a696d63]?? File "/usr/lib/python2.7/site-packages/eventlet/event.py", line 125, in wait
2016-07-18 16:40:24.930 1067239 TRACE nova.compute.manager [instance: ae58a0a8-f197-4099-93db-36d76a696d63]???? current.throw(*self._exc)
2016-07-18 16:40:24.930 1067239 TRACE nova.compute.manager [instance: ae58a0a8-f197-4099-93db-36d76a696d63]?? File "/usr/lib/python2.7/site-packages/eventlet/greenthread.py", line 214, in main
2016-07-18 16:40:24.930 1067239 TRACE nova.compute.manager [instance: ae58a0a8-f197-4099-93db-36d76a696d63]???? result = function(*args, **kwargs)
2016-07-18 16:40:24.930 1067239 TRACE nova.compute.manager [instance: ae58a0a8-f197-4099-93db-36d76a696d63]?? File "/usr/lib/python2.7/site-packages/nova/compute/manager.py", line 1795, in _allocate_network_async
2016-07-18 16:40:24.930 1067239 TRACE nova.compute.manager [instance: ae58a0a8-f197-4099-93db-36d76a696d63]???? dhcp_options=dhcp_options)
2016-07-18 16:40:24.930 1067239 TRACE nova.compute.manager [instance: ae58a0a8-f197-4099-93db-36d76a696d63]?? File "/usr/lib/python2.7/site-packages/nova/network/neutronv2/api.py", line 577, in allocate_for_instance
2016-07-18 16:40:24.930 1067239 TRACE nova.compute.manager [instance: ae58a0a8-f197-4099-93db-36d76a696d63]???? self._delete_ports(neutron, instance, created_port_ids)
2016-07-18 16:40:24.930 1067239 TRACE nova.compute.manager [instance: ae58a0a8-f197-4099-93db-36d76a696d63]?? File "/usr/lib/python2.7/site-packages/oslo_utils/excutils.py", line 85, in __exit__
2016-07-18 16:40:24.930 1067239 TRACE nova.compute.manager [instance: ae58a0a8-f197-4099-93db-36d76a696d63]???? six.reraise(self.type_, self.value, self.tb)
2016-07-18 16:40:24.930 1067239 TRACE nova.compute.manager [instance: ae58a0a8-f197-4099-93db-36d76a696d63]?? File "/usr/lib/python2.7/site-packages/nova/network/neutronv2/api.py", line 569, in allocate_for_instance
2016-07-18 16:40:24.930 1067239 TRACE nova.compute.manager [instance: ae58a0a8-f197-4099-93db-36d76a696d63]???? security_group_ids, available_macs, dhcp_opts)
2016-07-18 16:40:24.930 1067239 TRACE nova.compute.manager [instance: ae58a0a8-f197-4099-93db-36d76a696d63]?? File "/usr/lib/python2.7/site-packages/nova/network/neutronv2/api.py", line 331, in _create_port
2016-07-18 16:40:24.930 1067239 TRACE nova.compute.manager [instance: ae58a0a8-f197-4099-93db-36d76a696d63]???? network_id, instance=instance)
2016-07-18 16:40:24.930 1067239 TRACE nova.compute.manager [instance: ae58a0a8-f197-4099-93db-36d76a696d63]?? File "/usr/lib/python2.7/site-packages/oslo_utils/excutils.py", line 85, in __exit__
2016-07-18 16:40:24.930 1067239 TRACE nova.compute.manager [instance: ae58a0a8-f197-4099-93db-36d76a696d63]???? six.reraise(self.type_, self.value, self.tb)
2016-07-18 16:40:24.930 1067239 TRACE nova.compute.manager [instance: ae58a0a8-f197-4099-93db-36d76a696d63]?? File "/usr/lib/python2.7/site-packages/nova/network/neutronv2/api.py", line 304, in _create_port
2016-07-18 16:40:24.930 1067239 TRACE nova.compute.manager [instance: ae58a0a8-f197-4099-93db-36d76a696d63]???? port_id = port_client.create_port(port_req_body)['port']['id']
2016-07-18 16:40:24.930 1067239 TRACE nova.compute.manager [instance: ae58a0a8-f197-4099-93db-36d76a696d63]?? File "/usr/lib/python2.7/site-packages/neutronclient/v2_0/client.py", line 102, in with_params
2016-07-18 16:40:24.930 1067239 TRACE nova.compute.manager [instance: ae58a0a8-f197-4099-93db-36d76a696d63]???? ret = self.function(instance, *args, **kwargs)
2016-07-18 16:40:24.930 1067239 TRACE nova.compute.manager [instance: ae58a0a8-f197-4099-93db-36d76a696d63]?? File "/usr/lib/python2.7/site-packages/neutronclient/v2_0/client.py", line 544, in create_port
2016-07-18 16:40:24.930 1067239 TRACE nova.compute.manager [instance: ae58a0a8-f197-4099-93db-36d76a696d63]???? return self.post(self.ports_path, body=body)
2016-07-18 16:40:24.930 1067239 TRACE nova.compute.manager [instance: ae58a0a8-f197-4099-93db-36d76a696d63]?? File "/usr/lib/python2.7/site-packages/neutronclient/v2_0/client.py", line 298, in post
2016-07-18 16:40:24.930 1067239 TRACE nova.compute.manager [instance: ae58a0a8-f197-4099-93db-36d76a696d63]???? headers=headers, params=params)
2016-07-18 16:40:24.930 1067239 TRACE nova.compute.manager [instance: ae58a0a8-f197-4099-93db-36d76a696d63]?? File "/usr/lib/python2.7/site-packages/neutronclient/v2_0/client.py", line 211, in do_request
2016-07-18 16:40:24.930 1067239 TRACE nova.compute.manager [instance: ae58a0a8-f197-4099-93db-36d76a696d63]???? self._handle_fault_response(status_code, replybody)
2016-07-18 16:40:24.930 1067239 TRACE nova.compute.manager [instance: ae58a0a8-f197-4099-93db-36d76a696d63]?? File "/usr/lib/python2.7/site-packages/neutronclient/v2_0/client.py", line 185, in _handle_fault_response
2016-07-18 16:40:24.930 1067239 TRACE nova.compute.manager [instance: ae58a0a8-f197-4099-93db-36d76a696d63]???? exception_handler_v20(status_code, des_error_body)
2016-07-18 16:40:24.930 1067239 TRACE nova.compute.manager [instance: ae58a0a8-f197-4099-93db-36d76a696d63]?? File "/usr/lib/python2.7/site-packages/neutronclient/v2_0/client.py", line 83, in exception_handler_v20
2016-07-18 16:40:24.930 1067239 TRACE nova.compute.manager [instance: ae58a0a8-f197-4099-93db-36d76a696d63]???? message=message)
2016-07-18 16:40:24.930 1067239 TRACE nova.compute.manager [instance: ae58a0a8-f197-4099-93db-36d76a696d63] NeutronClientException: Authentication required
2016-07-18 16:40:24.930 1067239 TRACE nova.compute.manager [instance: ae58a0a8-f197-4099-93db-36d76a696d63]
2016-07-18 16:40:24.976 1067239 INFO nova.compute.manager [req-177d574f-f36e-4e99-946c-d34612ecd607 3d8b93c202a94046be24e4eee5d16fb8 c05f2d7996144cb69921e64391db4512 - - -] [instance: ae58a0a8-f197-4099-93db-36d76a696d63] Terminating in
stance

解決

錯誤里提示要求neutron的認證，突然靈光一閃想起來這個虛擬機鏡像cirros是一開始安裝完glance服務上傳測試用的，那個時候還沒有對接ceph，也就是說這個鏡像并不是存儲在ceph里的。重新上傳一個cirros的鏡像，啟動云主機成功。

另外因為更改了glance的存儲后端，導致原先的鏡像無法刪除，有兩種解決辦法：

1、修改glance-api.conf,改回原先的配置，重啟glance的相關服務，再刪除，刪除之后再改成新的配置重啟服務

2、直接修改元數據庫，在glance庫中，image_locations和images表記錄了鏡像的存儲信息。

MariaDB [glance]> select * from image_locations; +----+--------------------------------------+--------------------------------------------------------------------+---------------------+---------------------+---------------------+---------+-----------+---------+ | id | image_id | value | created_at | updated_at | deleted_at | deleted | meta_data | status | +----+--------------------------------------+--------------------------------------------------------------------+---------------------+---------------------+---------------------+---------+-----------+---------+ | 1 | de64317b-638f-401e-b6df-d0bc8d5cd18a | file:///var/lib/glance/images/de64317b-638f-401e-b6df-d0bc8d5cd18a | 2016-10-13 08:05:39 | 2016-10-17 02:07:03 | 2016-10-17 02:07:03 | 1 | {} | deleted | +----+--------------------------------------+--------------------------------------------------------------------+---------------------+---------------------+---------------------+---------+-----------+---------+MariaDB [glance]> select * from images; +--------------------------------------+--------+----------+---------+-----------+---------------------+---------------------+---------------------+---------+-------------+------------------+----------------------------------+----------------------------------+----------+---------+-----------+--------------+ | id | name | size | status | is_public | created_at | updated_at | deleted_at | deleted | disk_format | container_format | checksum | owner | min_disk | min_ram | protected | virtual_size | +--------------------------------------+--------+----------+---------+-----------+---------------------+---------------------+---------------------+---------+-------------+------------------+----------------------------------+----------------------------------+----------+---------+-----------+--------------+ | de64317b-638f-401e-b6df-d0bc8d5cd18a | cirros | 13287936 | deleted | 1 | 2016-10-13 08:05:38 | 2016-10-17 02:07:04 | 2016-10-17 02:07:04 | 1 | qcow2 | bare | ee1eca47dc88f4879d8a229cc70a07c6 | 1c9b4504ff224d7f983158bfd8bec6aa | 0 | 0 | 0 | NULL | +--------------------------------------+--------+----------+---------+-----------+---------------------+---------------------+---------------------+---------+-------------+------------------+----------------------------------+----------------------------------+----------+---------+-----------+--------------+

?

轉載于:https://my.oschina.net/xiaozhublog/blog/713949

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