Here's my scenario: I have a service that has to run 24/7 and depends on a third party service that has a password.
I need to have that password changed. If I blindly change the password my service no longer works because it will continue using the old password until reconfigured. No matter how fast I reconfigure my service there's a period of time when the third party service has password changed and my service is not yet reconfigured.
How is this scenario typically handled?