https://cloudmato.com/tags/system-design/Recent content in System-Design on cloudmato.comHugo -- gohugo.ioencloudmato.comcloudmato.comTue, 09 Jun 2026 18:38:02 +0530https://cloudmato.com/posts/why-use-redis-history-alternatives/Tue, 09 Jun 2026 18:38:02 +0530cloudmato.comhttps://cloudmato.com/posts/why-use-redis-history-alternatives/<p>&ldquo;Just cache it in Redis&rdquo; — you&rsquo;ve probably heard that in a code review, a system design interview, or a Stack Overflow comment. It&rsquo;s almost a reflex at this point. But why Redis specifically? Why not a regular database with a good index, or any other in-memory store? I dug into the history, the architecture, and the current landscape of alternatives, and the story is genuinely more interesting than the meme lets on.</p>https://cloudmato.com/posts/websocket-vs-http-one-socket-per-page/Mon, 08 Jun 2026 13:36:02 +0530cloudmato.comhttps://cloudmato.com/posts/websocket-vs-http-one-socket-per-page/<p>I get why this question keeps coming up. A WebSocket stays open, remembers who you are, and lets the server push data to you without you asking for it again and again. So why are we still firing off a hundred separate HTTP requests for a single page load when we could just open one persistent pipe and be done with it? Honestly, the question sounds smarter than most people give it credit for — and the answer is not &ldquo;because HTTP is better.&rdquo; It&rsquo;s a lot more nuanced than that.</p>