pg replication slots
Setup Streaming Replication with pgBackRest in PostgreSQL - DBsGuru
We will demonstrate How to Setup Streaming Replication with pgBackRest in PostgreSQL. Setup a shared repository (NFS) between the hosts, Prepare the Primary Node for Replication, Update pg_hba.conf, Configure pgBackRest to backup the Primary Node, Standby Setup, Test Streaming Replication.
PostgreSQL: Documentation: 12: 19.6. Replication
max_replication_slots: Min: 0, Max: 262143, Default: 10, Context: postmaster, Needs restart: true • Sets the maximum number of simultaneously defined replication slots.
PostgreSQL Streaming Replication: A Comprehensive Guide
Replication in PostgreSQL uses streaming as a strategy to achieve high availability (HA). This guide covers how to set up PostgreSQL streaming replication.