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News
Vector Databases Explained: Powering AI with Open Source Data Storage
1+ week, 2+ day ago (1717+ words) What do vector databases do? Why did they show up when they did? Which open source ones are worth your time? How do you use them? Here are some answers… It was a fair question. And I realised I’d never…...
One global threshold is how you delete valid data
4+ hour, 15+ min ago (388+ words) Our GPS filter worked perfectly, right up until someone sat in Bangalore traffic. A parked phone does not sit still in the data. The reported position wanders a few metres in every direction, and if you naively sum the gaps…...
Turning Mermaid ER diagrams into shareable 3D schema tours
4+ hour, 32+ min ago (20+ words) Mermaid erDiagram is great for... Tagged with mermaid, sql, database, opensource....
5 EXPLAIN ANALYZE Patterns Every Data Engineer Should Know
1+ hour, 17+ min ago (180+ words) If you’ve stared at PostgreSQL’s EXPLAIN ANALYZE output and felt completely lost, you're not alone. A few months ago, I spent nearly three hours debugging a query that looked perfectly reasonable in code review but turned into a 15-second nightmare…...
Migrated Up, Then Back
5+ hour, 56+ min ago (407+ words) The promise I'd made myself at the start was the discipline that kept the migration honest: external domains and ports stay unchanged, and the reverse proxy stays the anchor. Move a service in, get it working on k3s, then repoint the…...
Agent-Cache: Multi-Tier LLM Caching for Valkey and Redis
8+ hour, 3+ min ago (666+ words) Agent loops burn tokens and clock cycles on repeated work. The same LLM prompt fires twice, the same tool call fetches identical data, and session state gets reconstructed from scratch on every request. Agent-cache solves this with a three-tier caching…...
No Server, No Backend, Just Blazor WebAssembly Doing Semantic Search
8+ hour, 20+ min ago (1050+ words) 🚀 Semantic search on GitHub Pages with zero backend I recently added semantic search to... Tagged with blazor, webdev, embedding, dotnet....
Database Indexing Mistakes That Are Quietly Killing Your App's Performance
9+ hour, 25+ min ago (459+ words) Indexing is one of those topics every developer has heard of, most have used, and surprisingly few have actually reasoned through carefully. It's easy to add an index and move on — it's much harder to know whether that index is…...
At the edge, the number that matters is memory - not throughput (specially in Ramageddon)
9+ hour, 33+ min ago (720+ words) We rebuilt LF Edge eKuiper in Rust and ran it against eKuiper, Telegraf and Redpanda Connect... Tagged with rust, iot, performance, opensource....
Apache Spark frente a Apache Hadoop: arquitectura, rendimiento y casos de uso
7+ hour, 20+ min ago (1205+ words) Presentación Mi nombre es Kimberly Charlo Delgado Taylor y actualmente curso un Máster en Data Science. Mi experiencia …...