High Availability

Failure Taxonomy: How Distributed Systems Fail

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Distributed Systems Series — Part 4.1: Fault Tolerance & High Availability Why Failure Vocabulary Matters Before Failure Mechanisms Part 4 covers how distributed systems survive failures. But before designing survival mechanisms — redundancy, failure detection, circuit breakers, chaos engineering — engineers must be precise about what kinds of failures they are designing for. A retry … Read more

Why Replication Is Necessary in Distributed Systems

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Why is replication necessary in distributed systems? Learn the five motivations — availability, fault tolerance, durability, performance, and geographic distribution — and why replication converts hardware failures into coordination problems that consistency and consensus must solve.