Day 60: Multi-Region Log Replication - Building Global Resilience
Week 9: High Availability and Fault Tolerance | Module 2: Scalable Log Processing
🎯 What We're Building Today
High-Level Learning Agenda:
🌍 Multi-Region Architecture - Distribute log data across simulated geographic regions
⚡ Vector Clock Synchronization - Implement logical timestamps for distributed consistency
🔄 Primary-Secondary Replication - Build automatic failover with conflict resolution
📊 Real-Time Monitoring - Create a production-grade dashboard with health metrics
🚀 Performance Optimization - Achieve 1000+ logs/second with sub-100ms replication lag
🏗️ Production Deployment - Complete Docker containerization and testing suite
End Goal: A globally distributed log processing system that maintains availability during regional failures while ensuring data consistency across continents.
Why Multi-Region Replication Matters
When Netflix streams to millions of users globally, they can't afford to lose viewing data if their US-East data center goes down. Your favorite social media app needs to work whether you're in Tokyo or New York. This is where multi-region replication becomes critical.
Think of it like having backup copies of your important documents stored in different cities. If your house burns down, you still have copies elsewhere. But unlike simple backups, these copies stay synchronized in real-time.