Buglyst Blog
Learn to debug under pressure.
Playbooks for fast pattern recognition, guides for the full investigation, and articles for the engineering judgment around the edges.
17 playbooks · 509 guides · 95 articles · 12 linked practice labs ·skip to practice
Fast pattern recognition for the production failures engineers see most often.
17 playbooks
Debugging Env Var Issues
A concise checklist for incidents where local works but CI, staging, or production changes behavior.
Debugging Cache Stampedes
How to recognize and contain request spikes when cached data expires.
Debugging CORS Origin Bugs
A practical way to inspect origin parsing, credentials, and header behavior.
Debugging Retry Bugs
Retry issues often hide the first failure and create duplicate work.
Debugging Timezone Bugs
Time bugs usually live at day boundaries, DST changes, and unit conversions.
Debugging Pagination Bugs
Pagination bugs hide in boundary math, cursor reuse, and new records arriving between pages.
Structured investigations for the failure modes engineers meet in real systems.
Kubernetes ConfigMap Not Mounting as Volume – Debugging Guide
A practical guide to diagnose and fix ConfigMap volumes that fail to mount in Kubernetes pods, covering common misconfigurations and hidden gotchas.
Kubernetes PersistentVolumeClaim Stuck in Pending: Debugging Guide
A practical guide to debugging a PersistentVolumeClaim stuck in Pending state in Kubernetes, covering storage class misconfiguration, missing provisioner, and capacity issues.
Kubernetes RBAC 403 Forbidden: Debugging Authorization Denials
A practical guide to diagnosing and fixing Kubernetes RBAC 403 Forbidden errors, covering common causes, diagnosis steps, and fixes with real-world examples.
Kubernetes Ingress Not Routing Traffic: A Debugging Guide
A concrete debugging guide for when your Kubernetes Ingress controller stops routing traffic to services, covering diagnosis, common causes, and fixes.
Kubernetes HPA Not Scaling: Diagnosing and Fixing Stuck Autoscalers
A practical guide to debugging Horizontal Pod Autoscalers that refuse to scale, covering metrics pipeline issues, target utilization mismatch, and custom metrics pitfalls.
Kubernetes Node Not Ready: Beyond the Textbook
A practical guide to debugging Kubernetes nodes stuck in NotReady state, covering kubelet, CNI, disk pressure, and real-world edge cases.
Long-form thinking on debugging habits, observability, and the systems around the bug.
Five Debugging Habits That Separate Seniors from Juniors
It's not tools. It's not years of experience. It's five repeatable habits that senior engineers do reflexively and juniors haven't built yet.
Why Your Production Logs Are Lying to You
Logs tell you what the code reported. They almost never tell you what actually happened. Here is the gap, and how to close it.
The Real Cost of Console.log Debugging (and What to Use Instead)
Every engineer reaches for console.log. Most do not think about what it costs — in time, in performance, or in production readiness. Here is the honest accounting.
Interpreting Stack Traces: Practical Steps for Faster Debugging
Stack traces can be dense, but reading them fluently accelerates triage and root cause analysis. This article explains how to extract actionable information, with real-world context.
Efficient Debugging with git bisect: Going Beyond Binary Search
This article explains how to incorporate git bisect into your debugging workflow, focusing on practical execution, automation, and common edge cases.
Applying Rubber Duck Debugging to Complex Engineering Problems
Rubber duck debugging isn’t just a quirky solo exercise. I’ll show how explaining code out loud surfaces misunderstandings and reduces wasted team cycles.