Year-end data capacity

  • Survive
  • Flow 16

Difficulty 5 of 5

Year-end volume comes in five 60 s waves: 1x, 2x, 3x, 5x and 8x. At 1x, apps send 40 batches/s of 1 MB and analysts run 4 scans/s of 10 MB. Keep dashboard p99 under 500 ms and event lag under 10 s. Lose no event. Each wave adds budget.

Play level

KafkaHTTP/2HTTP/2Users40 req/sUsers4 req/sKafka log1 vCPU · 1 GBAnalytics DB1 vCPU · 1 GB
KafkaHTTP/2HTTP/2Users40 req/sUsers4 req/sKafka logAnalytics DB
The board at the start of the level
One server boardDrag or use arrow keys to change the load

280 req/s · CPU 70% · mean 22 ms

Goals and limits

p99 latency (Dash)
under 500 ms
Queue lag
under 10 s
Error rate (Events)
under 0.1%
Lost writes
none
Monthly cost
under 10 USD/mo
Waves
5
Time within SLO
at least 95%
Parts you can add
Kafka log, Analytics DB
Part limit
8
Traffic
4 req/s

Concepts

How players did

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