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11 resultsResilience Patterns — Circuit Breaker, Retry, Bulkhead, and Timeout
Prevent cascading failures with proven resilience patterns.
Graph Databases — When to Use Neo4j Over Relational
Nodes, edges, Cypher queries, and use cases where graph beats SQL.
PostgreSQL Performance Tuning Fundamentals
Indexing strategy, EXPLAIN ANALYZE, vacuum, and configuration settings that matter most.
PC Won't Turn On — Zero Power Diagnosis
Methodical troubleshooting when pressing the power button does nothing at all.
Ethernet Not Working — Full Diagnosis
From cable to driver to router — fix a wired connection that shows no activity.
WebSockets — Building Real-Time Features
Connection lifecycle, heartbeats, reconnection logic, and scaling with Redis pub/sub.
Migrating from MySQL to PostgreSQL
Schema translation, data migration, and common incompatibilities to address.
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.
PostgreSQL Replication — Streaming, Logical, and Read Replicas
Set up read replicas, understand WAL, and choose between streaming and logical replication.
Database Connection Patterns in PHP
PDO, prepared statements, connection pooling, and transaction management.