A deploy shipped two feature flags that were never tested together — Debug Lab

A deploy shipped two feature flags that were never tested together

#cicd-deployment-failure

00:00MEDIUM impact

Current signals

Error Rate

14%

Latency

1.2s

Healthy Pods

18/20

Flag Combinations Tested In CI

2/20

Incident

The CI/CD pipeline shipped a normal-looking deploy 15 minutes ago. Since then, a growing slice of checkout requests are failing with a 500.

Started 15 minutes ago

Working hypotheses

Nothing yet — investigate the evidence to surface possible causes.

Stuck?

A deploy went out 15 minutes ago. Since then, roughly 14% of checkout requests are failing with a 500 — not all of them.

Overview reviewed.

· ~14% of checkout requests are failing — not all of them, right after a deploy.

Investigation timeline