Challenges

Contention and waiting rooms

Ticketmaster: the drop

DifficultyStages: 0 / 4
  1. Seat map reads
  2. No double sales
  3. Waiting room
  4. Bot defense
  5. Final test

Sell 60,000 seats to 2M fans at 10:00:00. Serve the seat map, never sell a seat twice, hold the crowd in a waiting room and keep the bots out.

Final testAt 0:30 arrivals triple for 10 s. Your final board runs once more with a new traffic seed.

The system, stage by stageTap, drag or use arrow keys to step through the stages

Stage 4 of 4 · 7 parts given · 73,000 requests/s

Users 1API server 1Postgres 1

Progress on this page stays on this device.

Product names belong to their owners. Cogore is not affiliated with them.