pg_auto_failover now supports multiple standby architecure
In the pictured architecture, pg_auto_failover implements Business Continuity and data availability by implementing a single PostgreSQL service using multiple with automated failover and data redundancy. Even after losing any Postgres node in a production system, this architecture maintains two copies of the data on two different nodes. pg_auto_failover
This makes making high scalability configuration for PostgreSQL database much easier.