https://nyadgar.com/tags/k8s/ Recent content in K8s on nyadgar.com Hugo en-us Mon, 20 Jan 2025 15:50:12 +0200 https://nyadgar.com/posts/scaling-grpc-with-kubernetes-using-go/ Mon, 20 Jan 2025 15:50:12 +0200 https://nyadgar.com/posts/scaling-grpc-with-kubernetes-using-go/ <h2 id="the-tech">The Tech</h2> <p><a href="https://grpc.io/"><code>gRPC</code></a> is a strong player in microservices-based systems. Leveraging <a href="https://protobuf.dev/">Protocol Buffers</a> for well-defined API contracts, fast serialization (about <code>X5</code> faster than <code>JSON</code>), smaller payloads, and the use of streams (thanks to <code>HTTP/2</code>). It&rsquo;s easy to see why this technology for real-time microservice communication is a good choice.</p> <h3 id="http2">HTTP/2</h3> <p>Unlike a typical REST API that&rsquo;s built on top of <code>HTTP/1.1</code>, <code>gRPC</code> is built on top of <code>HTTP/2</code>. The most noticeable feature of <code>HTTP/2</code> is the ability to perform <em>server push</em>. This feature allows servers to asynchronously <em>push</em> data to the client before the client asks for it. <code>gRPC</code> leverages <em>server push</em> to support <em>streams</em>, a key feature that separates <code>gRPC</code> from any other <code>HTTP/1.1</code>-based API. Because of that, <code>HTTP/2</code> requires a long-lasting <code>TCP</code> connection between the client and the server.</p>