https://akshayd-dev.pages.dev/tags/microservices/ Recent content in Microservices on Akshay Deshpande Hugo en-us Sun, 17 Nov 2024 00:00:00 +0000 https://akshayd-dev.pages.dev/posts/message-delivery-in-distributed-systems/ Sun, 17 Nov 2024 00:00:00 +0000 https://akshayd-dev.pages.dev/posts/message-delivery-in-distributed-systems/ <p>In distributed systems, the principle of message passing between nodes is a core concept. But this leads to an inevitable question: <em>How can we ensure that a message was successfully delivered to its destination?</em></p> <p><img loading="lazy" src="https://akshayd-dev.pages.dev/posts/message-delivery-in-distributed-systems/images/image.png"></p> <p>To address this, there are three types of delivery semantics commonly employed:</p> <p>• <strong>At Most Once</strong></p> <p>• <strong>At Least Once</strong></p> <p>• <strong>Exactly Once</strong></p> <p>Each of these offers different guarantees and trade-offs when it comes to message delivery. Let’s break down each one:</p>