https://umitunal.net/tags/architecture/Recent content in Architecture on Umit UnalHugoen-us© 2020 Umit Unal.Sun, 09 Aug 2026 22:25:00 +0300https://umitunal.net/2026/08/scalesense-design-for-scale-before-you-build/Sun, 09 Aug 2026 22:25:00 +0300https://umitunal.net/2026/08/scalesense-design-for-scale-before-you-build/<p><strong>&ldquo;100K users&rdquo; is not a capacity plan—or even a workload.</strong></p> <p>One hundred thousand registered users might produce 20 requests per second or 20,000. They might read tiny cached objects, run expensive analytical queries, upload large files, or arrive together during a flash sale. The same user count can describe systems with completely different CPU, memory, storage, network, latency, and failure requirements.</p> <p>Yet architecture conversations often jump directly from a product number to a technology. We expect 100K users, so do we need Kubernetes? Traffic will grow, so should we add Kafka? The database might become slow, so should Redis sit in front of it?</p>