Chapter 2: The 3 Caching Vulnerabilities (Penetration, Breakdown, Avalanche) & Go Singleflight
← Previous | Series hub | Next → Chapter 2: The 3 Deadliest Cache Vulnerabilities Caching is the ultimate shield for databases in distributed systems. However, poorly implemented caches can become the exact reason your system crashes. In this chapter, we dissect three classic caching phenomenons and how to defend against them using Golang. 1. Cache Penetration Answer-first: Cache penetration occurs when attackers query non-existent IDs, bypassing the cache entirely. Defend against it by caching NULL values or utilizing Bloom Filters at the memory level. ...