Technical Insights & Architecture Papers
Deep-dives on high-throughput backend architecture, Python & Django performance, real-time Voice AI, and resilient database modeling.
PostgreSQL Point-in-Time Recovery (PITR) & Continuous WAL Archiving with pgBackRest and S3/MinIO: Zero-RPO Disaster Recovery Architecture
Eliminate database data loss windows with continuous Write-Ahead Log (WAL) streaming and deterministic Point-in-Time Recovery (PITR) using pgBackRest and S3-compatible object storage.
Redis Memory Fragmentation & jemalloc Tuning: Diagnosing OOM Kills and Calibrating Active Defragmentation in Production
Redis nodes frequently get killed by the Linux OOM-killer even when used_memory is well below host limits. Learn how to diagnose jemalloc allocator fragmentation and configure active defragmentation safely.
PostgreSQL VACUUM & Autovacuum Tuning: Preventing Table Bloat & Wraparound Crises
Default PostgreSQL autovacuum settings are dangerously conservative for high-write tables. Learn how to tune scale factors, cost limits, and worker thresholds to eliminate multi-gigabyte table bloat and prevent transaction ID wraparound outages.
Node.js Memory Leak Forensics: Heap Snapshots, V8 GC Profiling & Container OOM Kills
Elusive memory leaks in long-running Node.js containers lead to unexpected Linux OOM killer terminations during peak traffic. Master heap dump capture, allocation timelines, and V8 garbage collection forensics.
Mastering PgBouncer: Connection Pooling & Transaction-Level Sizing
PostgreSQL spawns a dedicated process per connection, exhausting server RAM under high concurrency. Learn how to configure PgBouncer in transaction pooling mode to scale throughput by 5x with minimal resource footprint.
Zero-Downtime PostgreSQL Schema Migrations: The Expand-and-Contract Pattern
How to execute production database schema modifications without table locks, transaction timeouts, or breaking running application threads using the Expand-and-Contract lifecycle.