Why Is Redis INCR a Bad Fit for a Public URL Shortener?

<h2> 1. Intro — The Problem We Actually Had </h2> <p>Building real-time systems is often presented as a distributed systems problem.</p> <p>Kafka, stream processors, event buses,

<p>Every backend engineer has heard the advice: add a cache. It will make your system faster. And they are right, it will. But a cache that is not properly understood is one of

<p>I recently built a URL shortener, and it turned out to be one of the best decisions I've made since I started learning backend development. It was actually recommended to me as

<h2> Redis Is a Network Hop </h2> <p>Every Redis call is a TCP round-trip. At 96 concurrent workers doing FHE operations, a single Redis container serialized all connections. Our

<p>Well I failed a amazon OA because of a rate limiting question, So I have built this rate limiter from first principles and haven't followed any tutorial. Through this blog, I

<p>Hey dev.to community! 👋</p> <p>I've been working on a side project for a while now and finally got it to a point where I feel comfortable sharing it publicly. It's called