powersoft-tech-report.hashnode.devWrite-Ahead Logging Is Not Enough: How Modern Databases Actually Survive Crashes Most engineers trust WAL blindly. Here's what actually happens between the crash and the recovery — and why the gap is larger than you think. The Confidence Problem Ask any backend engineer how thei3d ago·10 min read
powersoft-tech-report.hashnode.devYour Connection Pool Is Leaking. You Just Don't Know It Yet.Monday morning. Traffic looks normal. Then the alerts start. "Database connection timeout." You check the database. CPU is 5%. Memory is fine. Plenty of capacity. But your application can't connect. The pool says all 50 connections are in use. Your m...Feb 11·5 min read
powersoft-tech-report.hashnode.devLeader Election in Distributed Systems: Who's in Charge When Everyone's Equal?In a distributed system, every node is created equal. But sometimes, you need one node to make decisions for everyone. Who writes to the database? Who assigns tasks to workers? Who holds the lock? Someone has to be the leader. The problem is choosing...Feb 5·4 min read
powersoft-tech-report.hashnode.devDatabase Connection Pool Optimization: From Bottleneck to BreakthroughDatabase Connection Pool Optimization: From Bottleneck to Breakthrough Introduction Your database isn't slow. Your connection pool is. I've seen teams spend weeks optimizing queries, adding indexes, and upgrading hardware—only to discover that their...Jan 29·8 min read
powersoft-tech-report.hashnode.devDesigning Distributed Cache Architecture with Redis ClusterIn high-traffic environments, caching is not optional—it's essential. Redis Cluster has become the industry standard for enterprise services, offering both horizontal scalability and high availability in a single solution. Architecture Overview A st...Jan 20·2 min read
