CDNs & the Edge

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 03.3 of the 4 in Caching & Delivery. It runs about 4 hours across 5 lessons, and closes with Edge — Place content across twelve regions under a fixed budget and a shifting traffic map.