Distributed

Lesson 08.8

Autoscaling signals

Autoscaling changes capacity in response to measured demand, but the signal must predict the workload's true bottleneck early enough to cover provisioning delay.

I/O-bound jobs queue while CPU stays low

Ava starts many cookie reports. The computers wait on files, so their thinking meters stay low even while the line grows.

In this lesson you'll

  1. 1Follow one run and learn how to read the picture
  2. 2Predict what changes before revealing the result
  3. 3Compare the controls and keep the computer inside its safe line during the rush