Topic
Consistency
Learn Consistency as a connected topic across chapters, concepts, simulations, and interview reasoning.
10 Concepts23 Articles7h 33m
Overview
Learn Consistency as a connected topic across chapters, concepts, simulations, and interview reasoning.
How this topic helps
System Design
Distributed Systems
Architecture
Databases
Learning Path in this Topic
Series that contain articles from Consistency. Select a path to filter the article list.
Articles
23 matched articles
Article 1The Consistency Continuum: From Read-Your-Own-Writes to Leaderless ReplicationTLDR: In distributed systems, consistency is a spectrum of trade-offs between latency, availability, and correctness. By leveraging session-based patterns like Read-Your-Own-Writes and formal Quorum l8 min
Article 2Azure Cosmos DB Consistency Levels Explained: Strong, Bounded Staleness, Session, Consistent Prefix, and EventualTLDR: Cosmos DB offers five consistency levels — Strong, Bounded Staleness, Session, Consistent Prefix, Eventual — each with precise, non-obvious internal mechanics. Session does not mean HTTP session25 minArticle 3Understanding Consistency Patterns: An In-Depth AnalysisTLDR
TLDR: Consistency is about whether all nodes in a distributed system show the same data at the same time. Strong consistency gives correctness but costs latency. Eventual consistency gives speed13 minArticle 4Clock Skew and Causality Violations: Why Distributed Clocks LieTLDR: Physical clocks on distributed machines cannot be perfectly synchronized. NTP keeps them within tens to hundreds of milliseconds in normal conditions — but under load, across datacenters, or aft19 min
Article 5Stale Reads and Cascading Failures in Distributed SystemsTLDR: Stale reads return superseded data from replicas that haven't yet applied the latest write. Cascading failures turn one overloaded node into a cluster-wide collapse through retry storms and redi25 min
Article 6Split Brain Explained: When Two Nodes Both Think They Are LeaderTLDR: Split brain happens when a network partition causes two nodes to simultaneously believe they are the leader — each accepting writes the other never sees. Prevent it with quorum consensus (at lea22 minPage 1 of 4