Making a system highly available isn't just about adding redundancy

1. Introduction Ever wondered how millions of orders are processed seamlessly on Meesho every day? With over 175 million users transacting annually, ensuring a smooth and reliable checkout experience is mission-critical. Behind the scenes, the checkout system acts as the backbone of order processing, and any hiccups here can significantly hamper user experience and has disproportionately higher business impact compared to other parts of the user journey. So, how do we keep it running flawlessly? Enter our active-active strategy—a game-changing approach to ensure high availability and zero downtime for the Meesho Checkout System. In this article, we take you behind the scenes to uncover the challenges we faced, the solutions we implemented, and the key lessons we learned while building a checkout system that’s not just reliable but built to scale. Let’s dive in! 🚀 1.1 Checkout System Architecture Here’s how a typical user journey looks like while placing an order. User Checkout Jou ... Read full article.