Patent attributes
An identity authentication management (IAM) service is established as a master over a master identity database of the centralized identity authentication management service. When adding an additional node to the computing infrastructure, a non-master copy of the master identity database is distributed to the additional node. Ongoing coordination between the master identity database and the non-master copy is established so as to synchronize differences between the master identity database and the non-master copy of the identity database. The additional node hosts a fully-functional authentication management service using the non-master copy of the master identity database and is able to respond to READ requests for data by accessing the non-master copy—without interaction with the centralized identity authentication management service.