System Design Course

System Design Course

Share this post

System Design Course
System Design Course
Day 59: Building Bulletproof Log Processing with Active-Passive Failover

Day 59: Building Bulletproof Log Processing with Active-Passive Failover

Week 9: High Availability and Fault Tolerance | Module 2: Scalable Log Processing

System Design Course's avatar
System Design Course
Jul 09, 2025
∙ Paid
6

Share this post

System Design Course
System Design Course
Day 59: Building Bulletproof Log Processing with Active-Passive Failover
2
Share

🎯 What We're Building Today

High-Level Agenda:

  • Heartbeat Monitoring System - 2-second interval failure detection

  • Automatic Failover Controller - Leadership election with consensus

  • State Synchronization - Redis-backed persistence across nodes

  • Health Check Integration - Load balancer compatibility

  • Real-Time Dashboard - React-based monitoring interface

  • Chaos Engineering Tests - Production resilience validation

Expected Outcome: Zero-downtime failover system completing transitions in under 10 seconds with 99.9% availability guarantee.


🏗️ System Architecture Overview

This post is for paid subscribers

Already a paid subscriber? Sign in
© 2025 System Design Course
Privacy ∙ Terms ∙ Collection notice
Start writingGet the app
Substack is the home for great culture

Share