All Questions
Managing Long Running Tasks medium

Why is 'Queue Depth' (ApproximateNumberOfMessagesVisible) a critical metric for auto-scaling workers?

  1. A It determines the price.
  2. B It is not useful.
  3. C It indicates the backlog. If Depth > 1000, add more workers. If Depth == 0, remove workers to save money.
  4. D It shows CPU usage.

One system design question a day, with spaced repetition so the ones you miss come back.

Get the app

Related questions