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142,000 tickets

400,000 users

9 Jan 2026 17 min read

Anatomy of a High-Demand Ticketing System: How Rosalía's LUX Tour sold 142,000 tickets without collapsing

Deep technical analysis of Rosalía's LUX Tour ticketing system. 400,000 users, 142,000 tickets, virtual queues, Redis, WebSockets, Circuit Breakers and the architecture that made selling 8 concerts in 2 hours possible.

Ticketing Architecture Redis

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