Overview

Architecting with Elixir and OTP: Building Scalable, Fault-Tolerant, and Distributed Systems for Modern Applications Modern software demands more than just speed - it demands resilience, concurrency, and fault tolerance at scale. Architecting with Elixir and OTP is your complete guide to designing and deploying production-grade systems that never stop running, even when things go wrong. Written with clarity and depth, this book walks you through the powerful architecture of the Elixir language and the Open Telecom Platform (OTP)-the same battle-tested foundation behind WhatsApp, Discord, and countless mission-critical services worldwide. Through detailed explanations, real-world examples, and working code, you'll learn how to build distributed systems that self-heal, scale dynamically, and operate with unmatched efficiency. Each chapter unfolds key concepts - from lightweight process management and supervision trees to clustering, message passing, and hot code upgrades - in a clear, conversational tone that connects with both new and experienced developers. You'll see how OTP behaviors such as GenServer, Supervisor, and Application form the backbone of fault-tolerant architecture and how they fit seamlessly into modern Elixir systems. Whether you're building a real-time chat engine, a distributed job scheduler, or a multi-node data pipeline, this book teaches you how to architect your systems the Elixir way - built on process isolation, concurrency, and graceful recovery. You'll also explore observability, telemetry, load balancing, and deployment strategies using tools like Docker, Prometheus, and Kubernetes, ensuring your applications remain both scalable and maintainable in production. By the end, you'll not only understand how Elixir and OTP power resilient systems - you'll have the practical skills to design, implement, and operate them confidently. Who This Book Is For: This book is written for software engineers, architects, and DevOps professionals who want to move beyond monoliths and build robust distributed systems that can scale effortlessly. Whether you are coming from a background in Python, Ruby, Java, or Node.js, you'll quickly find Elixir's functional, concurrent design both intuitive and powerful. Why You Should Read This Book Because reliability is not a luxury - it's a requirement. Systems today must handle millions of concurrent users, recover instantly from failures, and evolve without downtime. Elixir and OTP make that possible, and this book shows you exactly how to achieve it in real-world applications. You'll learn how to: Design resilient architectures using OTP principles Scale systems horizontally and vertically with BEAM's lightweight processes Implement fault-tolerant supervision strategies Coordinate distributed nodes for load sharing and reliability Monitor, test, and deploy production-ready Elixir applications If you're ready to build software that never sleeps, systems that heal themselves, and applications that scale seamlessly across nodes, Architecting with Elixir and OTP is your essential guide.

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