Active-Active vs Active-Passive System

Published on: September 05, 2025

Tags: #active-active-system #active-passive-system #availability-patterns


Active-Active System

graph TD
    subgraph "Active-Active System"
        Client -- Request --> Node1("Node 1 (active)")
        Node1 -- Response --> Client

        Client -- Request --> Node2("Node 2 (active)")
        Node2 -- Response --> Client
    end

Active-Passive System

graph TD
    subgraph "Active-Passive System"
        Client -- Request --> Node1("Node 1 (active)")
        Node1 -- Response --> Client

        Client -.->|On failover| Node2("Node 2 (passive)")
        Node2 -.->|Response| Client
    end

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