The boring 80% is what kills your backlog
A few weeks ago, we shipped cascading replication for PostgreSQL, MySQL and Redis on Cloud 66. Customers can now build replication chains: a primary streaming to a middle replica, which in turn streams to leaves. It reduces load on the primary, supports geographic distribution, and stops you from melting your network when you have a large fan-out of replicas all pulling WAL from the same machine. PostgreSQL has supported cascading replication natively since version 9.1, which shipped over a decade ago.