Forget me

  • Fix
  • Store 22

Difficulty 3 of 5

At 0:10, the source deletes 20 percent of 1,000 user records. Cached replies and search results must stop exposing them within one second. Keep total mismatched replies below 100.

0:11. Deleted users still appear in cached replies and search. Graph: mismatched replies climb past 100.

Play level

HTTP/2HTTP/2SQLUsers500 req/sLoad balanc…1 vCPU · 1 GBRedis cache1 vCPU · 1 GBSearch index2 vCPU · 2 GBPostgres2 vCPU · 2 GB
HTTP/2HTTP/2SQLUsers500 req/sLoad balanc…Redis cacheSearch indexPostgres
The board at the start of the level
Each worker adds one network cardDrag or use arrow keys to change the workers

2 workers · 1 TB moves in 1.1 h · 1,000 Mbps per card

Goals and limits

Data age
under 1 s
Data mismatches
under 100
Monthly cost
under 200 USD/mo
Parts you can add
Change capture
Part limit
16
Edit limit
4
Traffic
500 req/s

Concepts

How players did

Player results load from the server.

All levels