OpenStack报错:Host is not mapped to any cell

环境说明：

报错信息：

新建实例dt01报错：Host 'openstack-computer' is not mapped to any cell

问题解决办法：

控制节点以stack用户执行如下命令：

stack@openstack-controller:~$ nova-manage cell_v2 discover_hosts --verbose Option "logdir" from group "DEFAULT" is deprecated. Use option "log-dir" from group "DEFAULT"./usr/local/lib/python2.7/dist-packages/pymysql/cursors.py:166: Warning: (1287, u"'@@tx_isolation' is deprecated and will be removed in a future release. Please use '@@transaction_isolation' instead")  result = self._query(query)Found 2 cell mappings.Skipping cell0 since it does not contain hosts.Getting computes from cell 'cell1': da859b66-f993-4b79-ac58-58009ad27beaFound 0 unmapped computes in cell: da859b66-f993-4b79-ac58-58009ad27bea

重建实例：

再次新建实例dt04：

实例创建成功，且实例位于openstack-computer节点。

至此问题解决。

参考：https://ask.openstack.org/en/question/116517/host-is-not-mapped-to-any-cell/

https://docs.openstack.org/nova/latest/user/cells.html#step-by-step-for-common-use-cases