I Migrated Redis to KeyDB — Same Protocol, 5x Throughput, $0 Rewrite

<blockquote> <p>The pager went off at 2:14 AM.</p> </blockquote> <p>If you’ve spent any time operating distributed systems, you know that sound. It doesn’t just wake you up; it

<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

<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>When Redis changed its license on March 20, 2024, it triggered one of the fastest open-source forks in recent memory. Eight days later, on March 28, 2024, the Linux Foundation