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Mastering Apache Spark 2.x - Second Edition by Romeo Kienzler

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Example - connection to a MQTT message broker

So, let's start with a sample use case. Let's connect to an Internet of Things (IoT) sensor data stream. As we haven't covered machine learning so far, we don't analyze the data, we just showcase the concept.

We are using the IBM Watson IoT platform as a streaming source. At its core, the Watson IoT platform is backed by an MQTT (Message Queue Telemetry Transport) message broker. MQTT is a lightweight telemetry protocol invented by IBM in 1999 and became-- an OASIS (Organization for the Advancement of Structured Information Standards, a global nonprofit consortium that works on the development, convergence, and adoption of standards for security, Internet of Things, energy, content technologies, ...

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