Friday, April 22, 2016

Comparison of RabbitMQ, ActiveMQ, and ZeroMQ Message Brokers

RabbitMQ ZeroMQ ActiveMQ
RabbitMQ is one of the leading implementation of the AMQP protocol (along with Apache Qpid). Therefore, it implements a broker architecture, meaning that messages are queued on a central node before being sent to clients. This approach makes RabbitMQ very easy to use and deploy, because advanced scenarios like routing, load balancing or persistent message queuing are supported in just a few lines of code. However, it also makes it less scalable and “slower” because the central node adds latency and message envelopes are quite big.

RabbitMQ is a Message Queue Server in Erlang

It stores jobs in memory (message queue)
ZeroMQ is a very lightweight messaging system specially designed for high throughput/low latency scenarios like the one you can find in the financial world. Zmq supports many advanced messaging scenarios but contrary to RabbitMQ, you’ll have to implement most of them yourself by combining various pieces of the framework (e.g : sockets and devices). Zmq is very flexible but you’ll have to study the 80 pages or so of the guide (which I recommend reading for anybody writing distributed system, even if you don’t use Zmq) before being able to do anything more complicated that sending messages between 2 peers.

The socket library that acts as a concurrency framework

Faster than TCP, for clustered products and supercomputing

Carries messages across inproc, IPC, TCP, and multicast

Connect N-to-N via fanout, pubsub, pipeline, request-reply

Asynch I/O for scalable multicore message-passing apps
ActiveMQ is in the middle ground. Like Zmq, it can be deployed with both broker and P2P topologies. Like RabbitMQ, it’s easier to implement advanced scenarios but usually at the cost of raw performance.

ActiveMQ is an open source message broker in Java

Supports many advanced featuressuch as Message Groups, Virtual Destinations, Wildcards and Composite Destinations.

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