Distributed Transactions: Core Patterns and Consistency Methods

In modern microservices and distributed systems, ensuring data consistency across multiple databases and services is one of the most challenging engineering hurdles. This text-only course guides you through the foundational concepts of distributed transactions, helping you transition from monolithic database assumptions to robust, distributed architectural patterns. What you'll learn: 1. Understand the core principles of ACID properties versus BASE consistency models. 2. Analyze the mechanics of Two-Phase Commit (2PC) and why it can limit system scalability. 3. Implement the Saga pattern using both orchestration and choreography approaches. 4. Apply the Transactional Outbox pattern to reliably publish events in event-driven systems. 5. Compare consistency trade-offs to choose the right strategy for your specific business logic. You will start with essential terminology and the physical limitations of distributed networks, then progress through step-by-step written explanations of modern transactional patterns and their practical trade-offs. This course is designed for software developers, system designers, and aspiring architects who are new to distributed systems and want a clear, conceptual understanding without complex pre-requisites. Start reading to build reliable, consistent, and scalable distributed applications today.