Replicas vs Standby
When working with distributed systems you can encounter terminology such as “replicas” or “standby” intstances. When I first started learning about distrubuted systems, I assumed “replicas” and “standby” were the same thing, but called differently when talking about scaling or high availability. While they can be the same thing, that is not always the case, so I wanted to clarify the concepts in this post. Replicas Replicas are one or more exact copies of the primary instance of your database. Their main purpose is to balance the load. ...