NovaLink host display name does not get updated in the GUI

You might encounter issues when you rename a NovaLink host.

Problem

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 message.

Explanation

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 file.

Resolution

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.