RabbitMQ

Originally developed by Rabbit Technologies Ltd. which started as a joint venture between LShift and CohesiveFT in 2007,{{Cite news |work= Press release |date= February 8, 2007 |title= Launch of RabbitMQ Open Source Enterprise Messaging |url= http://www.rabbitmq.com/resources/RabbitMQ_PressRelease_080207.pdf |access-date= October 23, 2013 }} RabbitMQ was acquired in April 2010 by SpringSource, a division of VMware.{{Cite news |work= Press release |date= April 13, 2010 |title= Rabbit Technologies announce acquisition by SpringSource |url=http://www.rabbitmq.com/news.html |url-status=dead |archive-url= https://web.archive.org/web/20100418132113/http://www.rabbitmq.com/news.html |archive-date= April 18, 2010 |access-date= October 3, 2013 }} The project became part of Pivotal Software in May 2013.{{Cite news |work= Press release |date= May 14, 2010 |title= Proudly part of Pivotal |url=http://www.rabbitmq.com/news.html |url-status=dead |archive-url= https://web.archive.org/web/20130602054940/http://www.rabbitmq.com/news.html |archive-date= June 2, 2013 |access-date= October 3, 2013 }} Which then got acquired back by VMware in December 2019.{{Cite web |title=VMware Completes Acquisition of Pivotal |url=https://news.vmware.com/releases/vmware-completes-acquisition-of-pivotal |access-date=2023-04-06 |website=VMware News and Stories |date=30 December 2019 |language=en}}

The project consists of:

• The RabbitMQ exchange server
• Gateways for AMQP, HTTP, STOMP, and MQTT protocols
• AMQP client libraries for Java, .NET Framework and Erlang. (AMQP clients for other languages are available from other vendors.)
• A plug-in platform for extensibility, with a predefined collection of supported plug-ins, including:
• A "Shovel" plug-in that takes care of moving or copying (replicating) messages from one broker to another.
• A "Federation" plug-in that enables efficient sharing of messages between brokers (at the exchange level).
• A "Management" plug-in that enables monitoring and control of brokers and clusters of brokers.

This section gives sample programs written in Python (using the pika package) for sending and receiving messages using a queue.

The following code fragment establishes a connection, makes sure the recipient queue exists, then sends a message and finally closes the connection.

1. !/usr/bin/env python3

import pika

connection = pika.BlockingConnection(pika.ConnectionParameters(host="localhost"))

channel = connection.channel()

channel.queue_declare(queue="hello")

channel.basic_publish(exchange="", routing_key="hello", body="Hello World!")

print(" [x] Sent 'Hello World!'")

connection.close()

Similarly, the following program receives messages from the queue and prints them on the screen:

(Note: This example does not [https://pika.readthedocs.io/en/stable/examples/blocking_consume.html acknowledge] receipt of the message.)

1. !/usr/bin/env python3

import pika

def callback(ch, method, properties, body):

print(" [x] Received %r" % body)

connection = pika.BlockingConnection(pika.ConnectionParameters(host="localhost"))

channel = connection.channel()

channel.queue_declare(queue="hello")

print(" [*] Waiting for messages. To exit press Ctrl+C")

channel.basic_consume(queue="hello", on_message_callback=callback)

channel.start_consuming()

• Apache Kafka

{{Portal|Free and open-source software}}

{{Reflist}}

• {{cite web |date=2009-09-13 |author=Joern Barthel |title=Getting started with AMQP and RabbitMQ |publisher=InfoQ |url = http://www.infoq.com/articles/AMQP-RabbitMQ }}
• {{cite web |date=2009-04-09 |author=Peter Cooper |title=RabbitMQ - A Fast, Reliable Queuing Option for Rubyists |publisher=RubyInside |url=http://www.rubyinside.com/rabbitmq-a-fast-reliable-queuing-option-for-rubyists-1681.html }}
• {{cite conference |date=2008-09-25 |title=RabbitMQ: An Open Source Messaging Broker That Just Works |publisher=Google Tech Talks |url=http://google-ukdev.blogspot.com/2008/09/rabbitmq-tech-talk-at-google-london.html }}

• {{Official website}}

{{Message-oriented middleware}}

Category:Erlang (programming language)

Category:Free software programmed in Erlang

Category:Message-oriented middleware

Category:Software using the Mozilla Public License

Category:Pivotal Software