Clustering Users and Roles
Inter-node authentication takes place via HarperDB users. There is a special role type defined for clustering users that limits the user to only accessing proper clustering functionality.
HarperDB users and roles are independent per instance and are initially set when installing HarperDB. There is no limit of clustering users, however HarperDB-to-HarperDB clustering must use the same credentials. For Custom Pub/Sub Connectors we recommend creating an integration specific user on the HarperDB nodes that will be interacting with the integration.