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Introduction to RabbitMQ 3.7.23

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Following are the changes made in 3.7.23:

MQTT plugin

Enhancements: Throughput improvements that range from 14 to 60 percent depending on the workload.

AMQP 1.0 plugin

Enhancements: Throughput improvements

STOMP plugin

Web STOMP plugin

Enhancements: Now clients can authenticate using an x.509 (TLS) certificate.

RabbitMQ 3.7.23 not only supports a variety of acknowledgments for different use cases but also supports transactions across messaging queues. It also allows segregation of the various transactional semantics (if required). It also allows distributed transactions like X/Open XA transactions. It also supports message grouping and idempotent messages. It supports a lot of fine-grain control in terms of accessing queues. One can restrict access to certain queues, manage the depth, and a lot more.

Messaging allows applications to connect and scale-up. Applications can connect to one another, as parts of a larger application, or to end-users’ devices and data. RabbitMQ is a messaging broker- an intermediate entity for messaging. It provides a common platform for your applications to send and receive messages, and a safe place for your messages to live until consumed. Just like previous versions, 3.7.23 offers the following features:

Reliability: It offers a number of features that allow you to trade off performance with reliability, delivery acknowledgments, including persistence, high availability, and publish confirms. You also get finer and more consistent control on a per-message basis.

Flexible Routing: Messages arrive at exchanges and then routed to queues. RabbitMQ offers a number of predefined exchanges for various use cases. You can define more complex routing by means of binding exchanges together or by defining your own exchange-type as a plugin.

It is useful when we need to run the same job on a specific server, group of servers, or all servers. The application sends one message and exchange will route it. This is possible due to the powerful routing capability of RabbitMQ.

Clustering: Two or more RabbitMQ servers that are on a local network can be clustered together, forming a single large broker. Clustering involves the logical grouping of one or more nodes, virtual hosts, each sharing users, exchanges, queues, runtime parameters, bindings, and other distributed states.

Federation: For some use cases, servers need to be unreliably and loosely connected than allowed by clustering. RabbitMQ offers a federation model for such cases.

Highly Available Queue: Queues can be replicated across several nodes of the cluster, which ensures that messages are safe even in the case of hardware failure.

Multi-Protocol: RabbitMQ supports several of the messaging protocols. It was originally based on the Advanced Message Queuing Protocol (AMQP). Later on, it has been modified to support Message Queuing Telemetry Transport (MQTT), Streaming Text Oriented Messaging Protocol (STOMP), and several other common protocols

Management-UI: RabbitMQ comes equipped with an easy to use Management UI that helps in smooth control and monitoring of every aspect of the broker.

Tracing: In case the system misbehaves, RabbitMQ offers to trace support to find out what is breaking the system.

Plugin System: RabbitMQ comes with varieties of plugins and you are also allowed to write a custom plugins to meet requirements.

Conclusion – RabbitMQ Version

Upgrading to the latest version is always recommended as minor/major enhancements are always there. Apart from that, support for a particular version is discontinued after some time.