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.
Debugging Go HTTP Client Timeout Errors: Beyond the Obvious
A practical guide to identifying and fixing Go HTTP client timeout errors, covering net/http defaults, context deadlines, DNS issues, and connection pooling gotchas.
Debugging Go Test Race Conditions with t.Parallel()
A practical guide to diagnosing and fixing race conditions that appear when running Go tests with t.Parallel(), covering false sharing, shared state, and flaky CI failures.
gRPC Interceptor Not Executing in Go: Why Your Middleware Is Being Skipped
A debugging guide for when your gRPC interceptor in Go silently fails to execute, covering registration order, interceptor chaining, and server lifecycle quirks.
Debugging go.mod replace Directive Errors
A practical guide to diagnosing and fixing invalid, misconfigured, or conflicting replace directives in Go modules.
Golang sync.Mutex Deadlock: Detection and Resolution
A guide to identifying and fixing deadlocks caused by sync.Mutex in Go, covering detection, common causes, and practical fixes.
Fixing 'Type Does Not Satisfy Constraint' in Go Generics
A practical guide to diagnosing and resolving 'X does not satisfy constraint' errors when using Go generics with custom constraints.
Long-form thinking on debugging habits, observability, and the systems around the bug.
Documenting Bugs: A Postmortem-Driven Approach That Cut Recurrence by 60%
Most bug write-ups are useless. Here's a structured, postmortem-driven approach that reduced bug recurrence by 60% in our team — with templates and a real incident walkthrough.
Debugging Inside Docker Containers: Tools, Techniques, and a War Story
Practical techniques for debugging inside Docker containers: exec, nsenter, strace, and a real incident that made me rethink debug images.
kubectl logs: Debugging Pods with Logs, Timestamps, and Previous Instances
Beyond `kubectl logs pod-name` — using timestamps, previous instances, and multi-container patterns to diagnose real failures.
Debugging Serverless Functions Locally: A Practical Approach
Local debugging of serverless functions requires different tools and mindset than traditional apps. Here's how I approach it with real examples.
Debugging Terraform and CloudFormation Errors: A Field Guide to the 3 AM Page
Infrastructure-as-code errors are inevitable. Here's how to systematically debug Terraform and CloudFormation failures without losing your mind.
Debugging as Hypothesis Testing: A Mental Model for Systematic Root Cause Analysis
Most debugging is frantic guessing dressed up as experience. Here's a mental model that treats debugging as a scientific process — form hypotheses, design experiments, and isolate root causes systematically.