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mqttscalaclient's Introduction

MQTTScalaClient

MQTT Scala Publisher and Subscriber using Eclipse Paho

MQTT is a machine-to-machine (M2M)/Internet of Things connectivity protocol. It was designed with extremely lightweight that support embedded and low power processing device. You may read more about it here. MQTT is broker based message queuing system. To work with Mqtt, Mqtt Message broker/server required. Mosquitto is an open source Mqtt Broker. In ubuntu mosquitto can be installed using the command

sudo apt-get install mosquitto

Eclipse Paho is one mqtt client work well with mosquitto. You may read more about it here.

For more details refer this post

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mqttscalaclient's Issues

How to run this example

Hello, thanks for sharing your work!

I'm trying to run this example but without success. After building through sbt package I run the following command:

~/my/path/to/spark/bin/spark-submit --class "Subscriber" --master local[4] target/scala-2.10/mqttscalaclinet_2.10-0.2.0.jar

... and get this output:

java.lang.ClassNotFoundException: Subscriber
    at java.net.URLClassLoader$1.run(URLClassLoader.java:366)
    at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:425)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:358)
    at java.lang.Class.forName0(Native Method)
    at java.lang.Class.forName(Class.java:274)
    at org.apache.spark.deploy.SparkSubmit$.org$apache$spark$deploy$SparkSubmit$$runMain(SparkSubmit.scala:538)
    at org.apache.spark.deploy.SparkSubmit$.doRunMain$1(SparkSubmit.scala:166)
    at org.apache.spark.deploy.SparkSubmit$.submit(SparkSubmit.scala:189)
    at org.apache.spark.deploy.SparkSubmit$.main(SparkSubmit.scala:110)
    at org.apache.spark.deploy.SparkSubmit.main(SparkSubmit.scala)

What could I be missing?

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