Scaling PostgreSQL: High Availability and Replication

Is your single PostgreSQL server struggling to keep up with demand? When your application grows, your database needs to grow with it, but scaling can seem complex and intimidating. This course provides a clear, step-by-step guide to scaling PostgreSQL. You will move beyond single-server limitations and learn the principles and practices for building highly available and performant database systems that can handle increased traffic and prevent downtime. What you'll learn: - Understand the core concepts of database scalability, high availability, and the trade-offs involved. - Configure primary-replica streaming replication to distribute read workloads and prepare for failover. - Explore logical replication for more flexible data synchronization scenarios. - Implement connection pooling with PgBouncer to manage database connections efficiently and prevent resource exhaustion. - Use a load balancer like HAProxy to intelligently route queries across your database cluster. - Apply table partitioning strategies to manage very large datasets and improve query performance. - Learn the fundamentals of monitoring key health and performance metrics in a replicated setup. The course begins with the foundational theory of database scaling before guiding you through practical written exercises for setting up replication, connection pooling, and load balancing configurations from scratch. This course is designed for developers and junior database administrators who are comfortable with basic PostgreSQL and SQL, but have no prior experience with replication or high availability concepts. Start learning how to build robust and scalable PostgreSQL architectures today.