https://stacksimplify.com/tags/istio/Recent content in Istio on StackSimplify | DevOps & Cloud Education by Kalyan ReddyHugo -- gohugo.ioen-usTue, 14 Apr 2026 00:00:00 +0000https://stacksimplify.com/blog/ab-testing-ml-models/Tue, 14 Apr 2026 00:00:00 +0000https://stacksimplify.com/blog/ab-testing-ml-models/You retrained the model. Accuracy went up 2% on the test set. You deployed it. Revenue dropped 5%. What happened? Offline metrics lie. A model that scores better on historical data can score worse on real users. Canary vs A/B Testing Approach Question It Answers Traffic Split Canary “Does it break anything?” 10-20% to new model A/B Testing “Does it actually improve outcomes?” 50/50 to both models You need both. Canary first, then A/B.https://stacksimplify.com/blog/canary-rollouts-ml-models/Tue, 14 Apr 2026 00:00:00 +0000https://stacksimplify.com/blog/canary-rollouts-ml-models/You do canary deployments for APIs every day. Why not for ML models? New model ready. Looks good in testing. Deploy to production. Hope it works. It doesn’t. Rollback takes 5 minutes. Five minutes of garbage predictions. Damage done. How It Works Role Traffic Description Champion (80%) Production traffic Current model, proven, stable Canary (20%) Test traffic New version, running alongside Both run simultaneously. Same endpoint. Istio handles the traffic split.