My Database Cluster shows "updating" but no other info

In general, the Community wouldn't be able to provide much assistance with Managed Database issues since that most configuration/control of the backend is automatically managed as part of that service. If the issue persists, I recommend Opening a ticket in Cloud Manager so our Support Team can more fully investigate.

Did your application provide any specific error messages or exhibit any distinct behavior that could help identify the potential cause of the issue? Keep in mind that if your app relies on your database to function, an outage with that database would then almost certainly result in the outage of that app, if not degraded performance.

The maintenance window for your database is controlled through Cloud Manager and allows you to set the time of day and frequency of updates. For more information, be sure to reference the following guide on how to modify your current config:

• Automatic Updates and Maintenance Windows | Linode Docs