The Age of Real-Time Apps <> While exploring and experimenting with Spring Web Flux, I stumbled upon an interesting feature called Server-Sent Events (SSE) (rather an HTML5 standard) . Although I haven’t had the opportunity to use SSE in my…
Monolithic to Microservices Till the late 2000s, I had witnessed and worked extensively on monolithic applications — the era when a single server hosted the entire system. Some of the popular choices for these central servers were WebLogic, WebSphere, and…
From Threads to Reactive Streams Modern software systems are increasingly expected to deliver high responsiveness, scalability, and efficiency in environments that are distributed, data-intensive, and constantly connected. Traditional thread-based concurrency models, often become inadequate although they are foundations, as applications…
From Producers to Real-Time Topologies When you first step into the world of Apache Kafka, it feels like walking into a busy airport. Producers are like airplanes constantly landing with new passengers (data), Consumers are like buses waiting to pick…
Kafka Internals: How Topics, Partitions, and Replicas Actually Work When you start building real-time streaming systems, you’ll inevitably hear “Kafka is the backbone of modern data architectures.” But what does that really mean under the hood? Let’s break it down…
If you’re building modern systems, chances are you’ve already heard the buzzwords: Big Data, Hadoop, Kafka, Spark, Streaming. But have you ever wondered where this whole movement started and why stream processing even became a thing? The Pre-Google Era: When…
As a System Designer, let me take you through the journey of how data processing eventually gave birth to Kafka and real-time stream processing. In the early days, data processing was basic and primitive: capture the data, store it somewhere,…
Till recently whenever we used to start a java thread , it will internally request operating system to start the OS thread . From that point of time OS is responsible to manage this thread just like any other OS…
A notification system is responsible for sending timely alerts to users through different channels .A notification system has become one of the most essential features in modern applications, enabling instant communication between platforms and their users. Whether it is a…
Picture this: you open your favorite streaming app on a Friday night, popcorn in hand, all set to binge that new series everyone’s talking about. You hit play—and nothing happens. The app just spins. After a few refresh attempts, you…