Burrowing deeper

RabbitMQ 3.0.0 brings WebSockets into the fold

Chris Mayer
rabbitmq.1

The latest version of VMware’s AMQP project goes all out for WebSockets

Open source message broker RabbitMQ has received a huge
update this week, with the arrival of its third major
version.

The messaging-focused middleware , which was acquired by
VMware back in April 2010 has a radically improved feature set for
this big release, with focus firmly set on broader WebSocket
support, through
Web-STOMP and MQTT
plugins.


Introduced back in May
by the RabbitMQ team,
the arrival of Web-STOMP ushered in a new way of exposing messaging
in a web browser. Having tested out different approaches like the
JsonRPC plugin, the team realised that “messaging on the web is
very different to what we’re used to”.

STOMP-over-websockets
is the bridge between
Web-STOMP and the SockJS server, so essentially the STOMP protocol
is exposed through WebSockets.
For those aiming at
older browsers (ie. If your company still supports IE6
exclusively),
there’s also support available
for
those lacking WebSocket
compatibility
.

The
new MQTT adapter
plugin opens up the possibilities
of using RabbitMQ with lightweight devices. By adding in MQTT 3.1
support, this
enables “MQTT clients to connect to a
RabbitMQ broker simultaneously with clients implementing other
protocols”. As developers explore the possibilities of connecting
smaller devices, the linkup between MQTT and RabbitMQ

could break down some enterprise
barriers
.

In a comprehensive feature overhaul, RabbitMQ 3.0 refines
queue mirroring and makes it faster, warns about network partitions
and contains new simpler clustering commands. Another interesting
feature is background garbage collection, slashing excessive memory
use.

Written in Erlang, RabbitMQ implements the
Advanced Message Queuing Protocol (AMQP), allowing client
applications to communicate with one another over message brokers.
It also contains client libraries for Java, .NET, Ruby amongst
others. If you want to burrow deeper into what RabbitMQ’s all
about, head over to the project page to
download.

Also worth checking out is this video of RabbitMQ’s Simulator
to learn how to ways of the project.


Author
Comments
comments powered by Disqus