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.
Docker Volume Mount Not Showing Files: A Practical Debugging Guide
A hands-on guide to diagnosing Docker volume mounts that appear empty or fail to sync files, with real commands and common pitfalls.
Docker Healthcheck Always Failing: Diagnosis and Fixes
A practical guide to debugging Docker healthchecks that constantly fail. Covers common pitfalls like CMD syntax, exit codes, timing, and network dependencies.
Docker Compose depends_on Not Waiting – Why Your App Starts Before the Database Is Ready
Docker Compose's depends_on only waits for container start, not service readiness. This guide explains the difference and how to fix it with healthchecks and wait scripts.
Docker Compose Services Cannot Reach Each Other: A Debugging Guide
A practical guide to diagnosing and fixing network connectivity issues between services in Docker Compose, covering common misconfigurations and debugging commands.
Helm Chart Release Failed: Debugging Tillerless Deployments
A definitive guide to debugging failed Helm releases in Tillerless environments (Helm 3). Covers dry-run mismatches, hook failures, and resource conflicts.
Kubernetes Job Hangs: Debugging Pods That Never Complete
A Kubernetes Job pod stuck in Running or Pending state despite the container process appearing idle. Diagnose and fix common causes like missing termination, resource deadlocks, and probe misconfigurations.
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.