When a single server fails, the entire application goes down — but scaling to two servers introduces problems that are far harder to diagnose. Modern distributed systems demand a different mindset: one where failure, latency, and inconsistency are constants y...

When your database CPU hits 90% at 10,000 concurrent users, the real crisis isn't hardware—it's the design thinking you never had. Most developers learn to code, but few learn to architect for scale. That gap between local features and global performance is w...