1, login control node, nova show uuid
2, if the host value is null, continue to collect the following information in the main control node,
The host value is not empty, you need ssh to the computing node to collect the following information
3, this is already a node information, you need to log in to the computing node query var / log / nova / nova-computer.log log,
cat var / log / nova / nova-computer.log | grep uuid.
4, the query results are as follows:
Image 73a56d4c-3418-46fa-acf0-ab9fb52fcc60 is unacceptable: Size is 96GB and does not fit in a volume of size 80GB.
5, prompted to create a virtual machine image used 98G cloud hard disk, but only created when the configuration 80G
6, Solve the problem, reset the cloud hard disk is 100G, the virtual machine is created successfully