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Six weeks to the spike: holding 10x without a rewrite

Sei settimane al picco: reggere 10x senza riscrivere · Engineering · Advanced

The case

Marketing signed a TV partnership that will bring traffic spikes estimated at ten times normal, starting six weeks from today. The application handles current load with a 2x margin, not 10x: the known bottlenecks are the database (heavy queries on the home page), report generation, and a synchronous legacy service that does not scale horizontally. Rewriting the service would take three months. Extraordinary budget is available, time is not. How do you prepare the system in six weeks?

Il marketing ha firmato una partnership televisiva che porterà il traffico a picchi stimati di dieci volte il normale, a partire da sei settimane da oggi. L'applicazione regge il carico attuale con margine due, non dieci: i colli di bottiglia noti sono il database (query pesanti sulla home), la generazione dei report e un servizio legacy sincrono che non scala orizzontalmente. Riscrivere il servizio richiederebbe tre mesi. Il budget straordinario c'è, il tempo no. Come prepari il sistema nelle sei settimane?

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