Caching : Thundering Herd and Request Hedging

Caching: It's Not Just About Memory Myth-busting time : Caching doesn't mean in-memory. I see this confusion everywhere. We accept data staleness in exchange for avoiding expensive operations. Every time you cache something, you're saying 'I'd rather serve data that might be 5 minutes old than wait 2 seconds for a database query What Caching Really Means Cache = saving expensive operations .…