🎯 Today's Build Agenda
What We're Building:
Fixed time windows (5-minute, hourly, daily aggregations)
Window state management across distributed nodes
Real-time analytics dashboard with live charts
Redis-backed persistence for production reliability
Integration layer with yesterday's MapReduce system
End Goal: Answer questions like "What was our error rate in the last hour?" with sub-second response times.
The Time Problem in Distributed Systems
Imagine monitoring Netflix's streaming platform during a major release. Logs pour in from thousands of servers globally, each with slightly different timestamps. How do you group these events into meaningful time periods to detect issues or measure performance?
GitHub Link:
https://github.com/sysdr/course-p/tree/main/day46/day46_windowed_analytics