Technical Insights & Architecture Papers
Deep-dives on high-throughput backend architecture, Python & Django performance, real-time Voice AI, and resilient database modeling.
Redis Streams Consumer Group Reliability: Recovering Stalled Messages with Pending Entries Lists (PEL) and XAUTOCLAIM
When distributed workers crash mid-execution, messages remain trapped in Redis Streams Pending Entries Lists (PEL). Master consumer group recovery, poisoned message routing, and automated re-claiming with XAUTOCLAIM in Python.
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.
Change Data Capture (CDC) at Scale: Streaming PostgreSQL WAL Changes to Redis & Kafka with Debezium and pgoutput
Application-level dual writes fail silently, while table polling destroys database IOPS. Learn how to stream PostgreSQL write-ahead log (WAL) mutations directly to Kafka and Redis using native pgoutput logical replication and Debezium.