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Introduction RabbitMQ is powerful and widely used in production. But if it is not secured, attackers may read, change, or delete your messages. Security is not only about protecting data, but also about making sure your system stays reliable. This article shows the most important security best practices when running RabbitMQ in production.
Introduction In RabbitMQ, a virtual host (vhost) is like a “namespace” or “container” inside the broker.It separates exchanges, queues, and bindings so different applications or environments can share the same RabbitMQ cluster without interfering with each other. If you know databases: What is a vhost? By default, RabbitMQ creates one vhost: /.
Introduction RabbitMQ is fast, but performance can go down if it is not configured well.Two key metrics are: This article explains simple ways to tune RabbitMQ for better throughput and lower latency. This article is a continuation of my earlier posts on High Availability in RabbitMQ: Clustering and Mirrored Queues Explained and Scaling Microservices with…
Introduction High Availability (HA) means your system can keep working even if some parts fail. In RabbitMQ, HA is very important because if the broker goes down, messages may be lost, or services may stop. RabbitMQ offers two main features for HA: This article explains these features in simple terms.
Introduction Sometimes, one service needs to send a request and wait for a reply from another service. This is called Remote Procedure Call (RPC). RabbitMQ can be used to build an RPC pattern. Even though RabbitMQ is normally used for async messaging, with the right setup we can also support request/response workflows.
Modern applications often need to pass data between services in a reliable and scalable way. Two of the most popular messaging systems are RabbitMQ and Apache Kafka. At first look, both do the same thing: move messages from one place to another. But in reality, they are built for different goals and have very different…
When microservices grow, we need to scale them so they can handle more traffic, new features, and spikes. RabbitMQ helps by decoupling services and buffering work with queues. This reduces direct pressure on APIs and databases, and makes it easier to add more workers when needed. This guide explains how to scale with RabbitMQ using…
In messaging systems, not every message can be processed successfully. Some messages may be invalid, expired, or cause errors in consumers. Instead of losing these messages, RabbitMQ provides a feature called the Dead Letter Queue (DLQ). DLQs allow you to capture, inspect, and handle failed messages safely. By default, any message that is rejected with…
RabbitMQ is one of the most popular message brokers for building distributed systems. It allows applications to communicate asynchronously by sending and receiving messages through queues. At the heart of RabbitMQ is the concept of an exchange, which decides how messages flow from producers (publishers) to consumers. This article explains RabbitMQ’s most common exchange types…
One of the main reasons people use RabbitMQ is reliability. In many systems, losing a message is not acceptable. Imagine if an order is placed in an e-commerce system but disappears before the payment service sees it, that would be a big problem. RabbitMQ offers three important features to ensure reliable messaging: Acknowledgments, Durability, and…