Blob or row

  • Choose
  • Store 18

Difficulty 3 of 5

Users load 200 images/s of 1 MB each. The images need no row joins, and their metadata stays in the application database. Choose where to keep and serve the image bytes. Keep p99 below 300 ms and the cost at or below 10,000 USD/month.

Play level

Options

  • Keep each image as a database row value
  • Serve image bytes from object storage
  • Object storage behind edge caches
A disk that fillsArrow keys change the write rate. Tap to ship the logs.

Goals and limits

p99 latency
under 300 ms
Monthly cost
under 10,000 USD/mo
Traffic
200 req/s

Concepts

How players did

Player results load from the server.

All levels