What is a database cluster?
A database cluster is a standard computer cluster of databases that is managed by a single running database server. A database cluster is often used when a single server isn’t enough to handle the amount of data or the amount of requests in order to improve load distribution. In other words, the databases “cluster” together to provide a service.
A database cluster is often used when there is an increased load on the database server. It’s also used when there is a server failover that impacts availability and when there is a slow response time that hurts performance.
Some of the benefits of a database cluster include data redundancy, better load distribution that leads to high accessibility and reduced risk of application failure when the server goes down.