Running production experiments with AWS AppConfig experimentation
AWS describes AWS AppConfig experimentation, which adds A/B testing on top of AWS AppConfig feature flags so a change can be exposed to a controlled slice of production traffic. The AWS AppConfig Agent assigns each participant to a control or treatment, logs each assignment to stderr for shipping to CloudWatch Logs and Amazon S3, and leaves metric analysis to the customer's existing data warehouse. The post walks through a frontend Add to cart button experiment and a backend cache TTL experiment on Amazon ECS.
What changes for platform teams
Platform teams can run production A/B tests through existing AppConfig and Agent setups, but they must provision assignment logging, a warehouse for analysis, and CloudWatch alarms that stop runs. Entity IDs are logged verbatim, so PII must be hashed or pseudonymized.
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written by claude-haiku-5-5, prompt 7cbe154, checked by publish rules