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Posts written by Arnaud Cogoluègnes

Interoperability in RabbitMQ Streams

October 7, 2021 by Arnaud Cogoluègnes

RabbitMQ streams allow applications to convey detailled information thanks to the powerful message format they use. Streams are a feature of their own, but they also fully integrate with the existing resources and protocols that RabbitMQ supports. This blog post covers the interoperability of streams in RabbitMQ and explores the scenarios it unlocks.

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Offset Tracking with RabbitMQ Streams

September 13, 2021 by Arnaud Cogoluègnes

RabbitMQ Streams provides server-side offset tracking for consumers. This features allows a consuming application to restart consuming where it left off in a previous run. This post covers the semantics of offset tracking and how it is implemented in the stream Java client.

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Message Deduplication with RabbitMQ Streams

July 28, 2021 by Arnaud Cogoluègnes

RabbitMQ Streams Overview introduced streams, a new feature in RabbitMQ 3.9 and RabbitMQ Streams First Application provided an overview of the programming model with the stream Java client. This post covers how to deduplicate published messages in RabbitMQ Streams.

As deduplication is a critical and intricate concept, the post will walk you through this mechanism step by step, from a naive and somewhat broken publishing application to an optimized and reliable implementation.

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Connecting to Streams

July 23, 2021 by Arnaud Cogoluègnes

RabbitMQ Streams Overview introduced streams, a new feature in RabbitMQ 3.9. This post covers how client applications should connect to RabbitMQ nodes to get the most benefit from streams when the stream protocol is in use.

Streams are optimized for high throughput scenarios, that’s why technical details like data locality are critical to get the best out of your RabbitMQ cluster. Client libraries can handle most of the details, but a basic understanding of how things work under the hood is essential when a setup involves extra layers like containers and load balancers. Keep reading if you want to learn more about streams and avoid some headaches when deploying your first stream applications!

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First Application With RabbitMQ Streams

July 19, 2021 by Arnaud Cogoluègnes

RabbitMQ Streams Overview introduced streams, a new feature in RabbitMQ 3.9. This post continues by showing how to use streams with the Java client. We will write our first application that publishes messages to a stream, and then consumes them.

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RabbitMQ Streams Overview

July 13, 2021 by Arnaud Cogoluègnes

RabbitMQ 3.9 introduces a new type of data structure: streams. Streams unlock a set of use cases that could have been tedious to implement with “traditional” queues. Let’s discover in this post how streams expand the capabilities of RabbitMQ.

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RabbitMQ Java Client Metrics with Micrometer and Datadog

April 10, 2018 by Arnaud Cogoluègnes

In this post we’ll cover how the RabbitMQ Java client library gathers runtime metrics and sends them to monitoring systems like JMX and Datadog.

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New Reactive Client for RabbitMQ HTTP API

October 18, 2017 by Arnaud Cogoluègnes

The RabbitMQ team is happy to announce the release of version 2.0 of HOP, RabbitMQ HTTP API client for Java and other JVM languages. This new release introduce a new reactive client based on Spring Framework 5.0 WebFlux.

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RabbitMQ Java Client 5.0 is Released

September 29, 2017 by Arnaud Cogoluègnes

The RabbitMQ team is happy to announce the release of version 5.0 of the RabbitMQ Java Client. This new release is now based on Java 8 and comes with a bunch of interesting new features.

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Metrics support in RabbitMQ Java Client 4.0

November 30, 2016 by Arnaud Cogoluègnes

Version 4.0 of the RabbitMQ Java Client brings support for runtime metrics. This can be especially useful to know how a client application is behaving. Let’s see how to enable metrics collection and how to monitor those metrics on JMX or even inside a Spring Boot application.

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RabbitMQ Java Client 4.0 is released

November 24, 2016 by Arnaud Cogoluègnes

The RabbitMQ team is happy to announce the release of version 4.0 of the RabbitMQ Java Client. This new release does not introduce any breaking changes and comes with a bunch of interesting new features.

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