What are the effects of changing user credentials in OpenStack cloud configuration?


The following are the effects of changing user credentials in an OpenStack cloud configuration on an Avi Controller:

The Avi Controller performs synchronization or rediscovery with the OpenStack cloud after each edit. The Avi Controller needs to re-establish connections to the existing OpenStack clients for each tenant using the new user credentials as the OpenStack clients access the OpenStack services on the Avi Controller. During the re-establishment process, response to the incoming request is also affected.

Due to the above, response to any REST API call that requires information from the OpenStack cloud is delayed. Performance degradation of the Avi REST API related to the OpenStack cloud is also observed. It is recommended to perform user-credentials-related changes during a maintenance window.