You might encounter issues when you rename a NovaLink host.
When you rename a NovaLink host by using
Edit Connection option from the Host list page, the host
display name switches back to the older name after a few minutes even though you see a success
This problem occurs when you add a NovaLink
host, and then rename it. When you edit the NovaLink host connection, its corresponding
configuration file is updated. But in case of host display name, the configuration file is not
getting updated leading to the host switching back to its older name as in the configuration
This problem can be resolved by manually updating the configuration file -
/etc/nova/nova-<host_uuid>.conf with the desired value for the
host_display_name key and restarting nova services.