Multi-region writes

  • Choose
  • Scale 18

Difficulty 4 of 5

Users write from eu-central (600/s), us-east (800/s) and ap-southeast (500/s). At 0:15 a database leader fails for 10 s. Keep every write p99 under 120 ms, lose no acknowledged write and keep errors under 1 percent. Pick the write design.

Play level

Options

  • One leader in us-east, async copies elsewhere
  • One leader in us-east, sync copies elsewhere
  • A home region for each user, with local copies
Copies and the write quorumDrag or use arrow keys to change the write quorum

Goals and limits

p99 latency (*)
under 120 ms
Lost writes
none
Error rate (*)
under 1%
Monthly cost
under 300 USD/mo
Traffic
500 req/s

Concepts

How players did

Player results load from the server.

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