PostgreSQL Replication Status Test
This tutorial assumes you have already setup 1) streaming replication between a primary and a replica PostgreSQL database cluster, and 2) are using replication slots.
Working with PostgreSQL Replication Slots: Simplified Guide
This blog includes a comprehensive analysis of PostgreSQL replication slots, explaining their types, usage, and how they ensure data consistency in replication.
How to overcome unavailablity of replication slots in HA standby ...
This document provides an overview of setting up out of the box replication in PostgreSQL 9.4 without third party tools. It discusses write-ahead logs (WAL), replication slots, pg_basebackup, pg_receivexlog and monitoring replication.