Mastering PostgreSQL High Availability

Mastering PostgreSQL High Availability: Streaming Replication, Failover & Repmgr Hands-On

What you'll learn
- PostgreSQL 18 Installation on Linux 9
- PostgreSQL 17 Installation on Linux
- Configure primary and standby servers for streaming replication
- Set up repmgr for cluster management and automatic failover
- Perform live failover and switchover tests

Requirements
- Basic knowledge of PostgreSQL

Description
High Availability is the beating heart of enterprise PostgreSQL systems. In this practical, hands-on course, you’lllearn to design, build, and manage a fault-tolerant PostgreSQL environmentusingstreaming replication, repmgr, andautomatic failover.

You’ll work directly withPostgreSQL 17onLinux (RHEL/CentOS/Oracle Linux 9), simulating real data-center conditions. Whether you’re a DBA, DevOps engineer, or architect, this course will teach youexactly how to prevent downtime and ensure database resilience.

What You’ll Learn

Configure primary and standby servers for streaming replicationSet uprepmgrfor cluster management and automatic failoverPerformlive failover and switchover testsManage replication slots, WAL archiving, and monitoringTroubleshoot replication lag and cluster recoveryUnderstand synchronous vs asynchronous replicationBuild production-ready HA architecture for PostgreSQL 17

This course will provides a step-by-step process to configure streaming replication in PostgreSQL 17 using asynchronous mode between two virtual machines. It includes system configuration, PostgreSQL installation, repmgr setup, and replication verification.

Course Sections (Proposed Structure)

Introduction to High Availability Concepts

PostgreSQL Installation & Environment Setup

Streaming Replication in Depth

repmgr Installation & Configuration

Failover & Switchover Management

Monitoring & Troubleshooting HA Clusters

Enterprise-Level HA Architecture Design

Final Demo: Real-Time Failover Simulation

This course is designed for professionals who want to buildrobust, fault-tolerant PostgreSQL environmentsand take their DBA or DevOps skills to the next level.

Who this course is for:
- Database Administrators (DBAs)
- Database Administrators (DBAs) who want to master streaming replication, repmgr, and high availability concepts.
- System Administrators / DevOps Engineers looking to implement PostgreSQL clusters in production.
- Software Engineers or Architect
- Students aiming to specialize in database management and backend reliability
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