One big or three small

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  • Level 13 of 41
  • Signal

Difficulty 2 of 5

The API serves 3,600 requests/s. One server fails at 0:40. Choose the server layout. Keep p99 below 250 ms, availability above 95 percent and errors below 5 percent.

Play level

Options

  • One large server
  • Two small servers
  • Three small servers
One server boardDrag or use arrow keys to change the load

Goals and limits

p99 latency
under 250 ms
Availability
at least 95%
Error rate
under 5%
Monthly cost
under 100 USD/mo
Traffic
3,600 req/s

Concepts

How players did

Player results load from the server.

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