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28 resultsResilience Patterns — Circuit Breaker, Retry, Bulkhead, and Timeout
Prevent cascading failures with proven resilience patterns.
PC Powers On But No Display — No POST Diagnosis
Systematic approach when a machine shows power LEDs but a black screen.
Observability — Logs, Metrics, and Traces
Implementing the three pillars with OpenTelemetry and making them actionable.
Data Warehouse Modelling — Star Schema and Dimensional Design
Facts, dimensions, slowly changing dimensions, and why modelling choices matter for query performance.
SQL Query Optimisation — Indexes, Execution Plans, and N+1
Practical techniques for making slow queries fast.
Health Check Endpoints — Readiness, Liveness, and Startup
Implement correct health endpoints so orchestrators route traffic and restart containers appropriately.
Diagnosing a Dead or Failing Motherboard
How to rule out other components before concluding the motherboard is at fault.
Fix Slow Windows 10/11 Startup
Step-by-step methods to cut boot time from minutes to seconds.
How long does a typical project take?
Timeline expectations from kick-off to launch.
Clone HDD to SSD Without Reinstalling Windows
Use Macrium Reflect Free to do a sector-level clone and swap drives safely.
gRPC Service Design — Protocol Buffers and Production Patterns
Proto file design, streaming, deadlines, interceptors, and error handling.
Airflow Best Practices for Production Pipelines
Idempotency, backfilling, SLA misses, and common pitfalls to avoid.
Fix Windows Stuck on "Preparing to Configure Windows"
Recover from a Windows Update loop that won't complete.
Diagnosing Failing RAM
How to identify bad memory using MemTest86, Windows Memory Diagnostic, and symptoms.
How to Upgrade RAM in a Desktop or Laptop
Find the right RAM, install it correctly, and verify it is running at rated speed.
Distributed Tracing — Propagating Context Across Services
Trace context propagation, sampling strategies, and analysing traces.
Monitoring and Alerting for Data Pipelines
What to monitor, SLIs/SLOs for data, and building effective alerting.
Async/Await Patterns and Common Pitfalls
Concurrency, parallelism, error handling, and avoiding common async bugs.
API Documentation Best Practices
What makes documentation useful, tooling, and keeping docs accurate.
Background Job Queue Design
Idempotency, retries, dead letter queues, and job observability.
Load Testing with k6
Script a realistic load test, interpret results, and find bottlenecks before they find users.
Database Connection Pooling — Why It Matters and How to Configure It
Pool sizing, connection lifetime, and debugging pool exhaustion.
GPU Troubleshooting — Artifacts, Crashes, and No Signal
Diagnose and fix graphics card issues from driver corruption to hardware failure.
Microservices Communication — Sync vs Async Patterns
REST, gRPC, message queues, and choosing the right pattern for each interaction.
API Testing Strategy — Unit, Integration, Contract, and E2E
Building a test pyramid that catches real bugs without slowing delivery.
BigQuery Cost and Performance Optimization
Partitioned tables, clustered tables, slot usage, and avoiding full scans.
Our observability stack for production services
Logs, metrics, traces — how we instrument every service we ship.
Speed Up a Slow Computer — Full Tune-Up Guide
Software and hardware steps to restore performance on an aging PC.