Free
4h · 5 lessons
Overview
Cache placement, eviction and the invalidation problem; distributed caches and their failure modes; CDNs, the edge, and how large media actually reaches a browser. The cheapest scaling you will ever do, and the easiest to get wrong.
This module is 03.2 of the 4 in Caching & Delivery. It runs about 4 hours across 5 lessons, and closes with Thundering Herd — The cache tier restarts under full traffic. Keep the database alive.
Lessons
1. Client-side sharding and cache topology
Concept · 35 minutes
2. Redis and Memcached, compared honestly
Concept · 35 minutes
3. Cache coherence across a fleet
Concept · 35 minutes
4. The cold-start problem after a restart
Concept · 30 minutes
5. Failure: what happens when the cache is gone
Concept · 35 minutes
Before this
Module information
Duration
4 hours
Lessons
5
Level
Intermediate
Track
Caching & Delivery
Drill
Thundering Herd
Price
Free
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