Verify that an unavailable downstream service doesn't result in user-visible errors.

Motivation

When offering a service that is dependent on downstream services, you should ensure that the offered service also works fine whenever one of the downstream services can't be reached. This is especially true when multiple downstream services are involved and the responses of each downstream service are considered optional.

Structure

For the duration of the experiment and the deployment's upscaling, verify that a user-visible endpoint offered is responding within expected success rates and that no monitors are alerting. As soon as the deployment is scaled up, the newly scheduled pod should be ready to receive traffic within a reasonable time, e.g., 60 seconds.

Read more

This experiment template is used in our quick start on running an experiment and is especially useful for the shopping demo example. To learn more, check out the quick start in the Steadybit docs.