As we learned in the last chapter, Group Replication is an evolution of MySQL Replication designed to make data replication more robust and reliable. Together with the modifications to the InnoDB storage engine (all under the hood and hidden away), Group Replication enables high availability capabilities that used to require specialized and sometimes customized products, middleware, and bespoken applications to achieve.
In this chapter, we take a more in-depth look at what makes up Group Replication. After that, we will take a guided tour of Group Replication in a hands-on ...