What Broke When We Hit 100k WebSocket Connections (And How Realtime Orchestratio

<p>Most applications don't fail because of bad code.</p> <p>They fail because of bad architecture decisions made early that nobody questioned <br /> until it was too late.</p>

<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>WebSocket provides low-latency, bidirectional communication between clients and servers. It is a widely used solution for building real-time systems. Once a WebSocket

<p>When you’re building a hobby project, Vue’s reactivity feels like magic. But when that project hits 100,000 concurrent users, that same magic can turn into a memory-leaking

<h2> The Problem We Were Actually Solving </h2> <p>We werent building a generic scale story; we were protecting a money-printing loop. The treasure-hunt engine awarded cash prizes

<p>Most trading tools lock you into a single broker.</p> <p>I didn’t like that.</p> <p>So I started building a platform where you can connect multiple brokers and manage your

<h2> The Problem We Were Actually Solving </h2> <p>We ran Veltrix, a Hytale server network with 14 shards across three continents. Our player count spiked past 800 concurrent