Active-Active High Availability Setup

In this setup, multiple database servers process incoming database requests; these database servers operate in a clustered system and share data. All database servers together form a cluster that, outwardly, behaves like a single database. Each database server in the cluster runs has access to the complete data. If one database server fails, one of the other database servers can automatically take over.

Figure 1: Active-Active High Availability Setup: Architecture Overview