Warm standby region

  • Build
  • Guard 10

Difficulty 4 of 5

All traffic runs in eu-central. At 5:00 the whole region is lost for good. Recover in eu-west within 5 minutes (83.3 percent availability over 30 minutes). Lose at most 1 minute of writes (900 orders). Budget: 32 USD/month.

Play level

RegionRegionDNSHTTP/2SQLUsers150 req/sGeo DNS1 vCPU · 1 GBLoad balanc…Python API1 vCPU · 1 GBPostgres1 vCPU · 2 GB
RegionRegionSQLUsersGeo DNSLoad ba…Python…Postgres
The board at the start of the level
A backup and its restoreArrow keys change the backup interval. Tap to change the restore rate.

Backup every 60 minutes · RPO 60 minutes · RTO 11 hours at 100 Mbps

Goals and limits

Availability
at least 83.3%
p99 latency
under 250 ms
Lost writes
under 900
Monthly cost
under 32 USD/mo
Parts you can add
Python API, Load balancer (L7)
Part limit
6
Traffic
150 req/s

Concepts

How players did

Player results load from the server.

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