Distributed Systems Guide

A skill for researching and designing distributed systems, covering consensus algorithms, replication strategies, consistency models, fault tolerance, and performance analysis. Provides theoretical foundations and practical implementations relevant to systems research.

Consistency Models

Consistency Hierarchy

Strongest
  |  Linearizability (atomic, real-time ordering)
  |  Sequential consistency (program order respected)
  |  Causal consistency (causally related ops ordered)
  |  PRAM / FIFO consistency (per-process order)
  |  Eventual consistency (converges if updates stop)
Weakest

CAP Theorem and PACELC