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Really Small Message Broker

A very small messaging server that uses the lightweight MQTT publish/subscribe protocol to distribute messages between applications.

Date Posted: August 26, 2008

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Update: October 1, 2008 Version 1.0.1: $SYS retained topics now not persisted (change in design); QoS0 messages not queued when "non-cleansession" client is not connected (bug fix).

1. How do I send and receive MQTT messages?

You can write your own client program using the MQTT specification, or you can use the C or Java™ clients available from IBM® (linked from http://mqtt.org).

2. When I start the broker on Windows®, why do I get the following message?: The system cannot execute the specified program.

You need to install the Microsoft Visual C++ 2008 Redistributable Package.

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