The Paho project provides scalable open-source implementations of open and standard messaging protocols aimed at new, existing, and emerging applications for Machine‑to‑Machine (M2M) and Internet of Things (IoT).
For Constrained Networks
M2M and IoT systems need to deal with frequent network disruption and intermittent, slow, or poor quality networks. Minimal data costs are crucial on networks with millions and billons of connected devices.
Devices and Embedded Platforms
Devices and edge-of-network servers often have very limited processing resources available. Paho understands small footprint clients and corresponding server support.
Highly Scalable
Paho focuses on highly scalable implementations that will integrate with a wide range of middleware, programming and messaging models.
A list of quick start guides is maintained on the Paho Wiki.
The specification for the MQ Telemetry Transport protocol is available on the IBM developerWorks site.
An IBM Redbook is available that gives an introduction to the protocol and uses a scenario-based approach to demonstrate its capabilities.
More information about the protocol can be found on the MQTT.org community site.
Questions about the protocol itself, rather than the Paho implementations, should be directed to the MQTT Google Group.
MQTT sandbox server
There is a publically accessible server for the Eclipse M2M projects available at m2m.eclipse.org, port 1883.
Some live statistics are available at https://cosm.com/feeds/59871 and an HTTP bridge with a list of topics is deployed at http://m2m-eclipse.cloudfoundry.com. This server is running the Open Source Mosquitto broker.
We are still setting things up to get automated builds of the clients available.
In the meantime, a pre-built version of the Java client is available; other clients builds will be added soon.
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