Define Automatic Rollback Criteria
Revert when error or latency breaches a guardrail.
Define Automatic Rollback Criteria is a free MLOps Academy lesson on CoddyKit — lesson 3 of 4. You can read the complete lesson below for free — then practise it hands-on in the browser with a built-in code editor and a 24/7 AI tutor. It is part of the MLOps Academy learning path, one of 4 lessons in the course, and your progress syncs across the web and the CoddyKit app.
Why Automate Rollback
At 3 a.m. nobody is watching dashboards. Automatic rollback lets the system itself revert a bad model the moment it crosses a danger line. 🚨
Pick Clear Guardrails
A rollback rule needs a measurable guardrail metric, like error rate or p99 latency, with a number that clearly means trouble.
Set a Hard Threshold
Turn vague worry into a concrete limit. For example, roll back if the canary error rate exceeds 2% over the measurement window.
ROLLBACK_RULES = {
"error_rate": 0.02,
"p99_latency_ms": 500,
}Compare to the Champion
Absolute limits miss slow regressions. Also roll back if the canary is clearly worse than the champion, say 20% higher latency on the same traffic.
Choose a Time Window
Judge metrics over a rolling window, like the last 5 minutes. One unlucky request should never trigger a full rollback by itself.
Wait for Enough Traffic
A 100% error rate over three requests means nothing. Require a minimum sample size before any metric is allowed to fire a rollback.
The Decision in Code
The check is just a comparison: if the live metric breaches its limit, return a rollback signal for the orchestrator to act on.
def should_rollback(metrics):
return (
metrics["error_rate"] > 0.02
or metrics["p99_latency_ms"] > 500
)Watch Business Metrics Too
A model can be fast and error-free yet still tank conversions. Guard the outcomes that matter, not only the technical health signals.
Make Rollback Cheap
Rollback should be one fast, safe step: flip traffic back to the proven champion. Keep that previous version warm and ready to take over.
Always Alert a Human
Automation handles the emergency stop, but it must notify the team too. An auto-rollback should page someone to investigate the root cause.
Avoid Flapping
Do not auto-redeploy the same failing model right after rollback. Freeze the rollout until a human reviews, so it cannot flap back and forth.
Quick Check
Which design choice keeps rollback rules trustworthy?
Recap
Good rollback criteria use clear thresholds over a fair window with enough traffic, compare to the champion, alert a human, and revert fast. ✅
Frequently asked questions
Is the “Define Automatic Rollback Criteria” lesson free?
Yes — the full text of “Define Automatic Rollback Criteria” is free to read here on the web, and the MLOps Academy course includes 4 lessons in total. To practise it interactively (a built-in code editor and a 24/7 AI tutor) and unlock the rest of the MLOps Academy course, upgrade to CoddyKit PRO.
What will I learn in “Define Automatic Rollback Criteria”?
Revert when error or latency breaches a guardrail. You practise MLOps Academy with hands-on code you run directly in the browser, and a 24/7 AI tutor answers your questions as you work through the lesson.
Do I need any experience to start MLOps Academy?
No prior experience is required. MLOps Academy on CoddyKit is structured for beginners through advanced learners; this is — lesson 3 of 4, so you can start here or from the beginning and move at your own pace.
How long does the “Define Automatic Rollback Criteria” lesson take?
Most CoddyKit lessons take about 5–10 minutes. Each one is bite-sized and interactive, so you make steady progress and pick up exactly where you left off across the web and the app.
Can I write and run code in this MLOps Academy lesson?
Yes. Every MLOps Academy lesson includes a built-in code editor, so you write and run real code right in your browser and get instant AI feedback — no local setup required.
All lessons in this course
- Canary Rollouts: Ship to a Few First
- Shadow Traffic Without User Impact
- Define Automatic Rollback Criteria
- Progressive Delivery with Argo Rollouts