Francesco Beneventi created BAHIR-104:

             Summary: Dstream returned by the new multi topic support API is 
not a pairRDD
                 Key: BAHIR-104
             Project: Bahir
          Issue Type: Bug
          Components: Spark Streaming Connectors
    Affects Versions: Spark-2.1.0
            Reporter: Francesco Beneventi

The new multi topic support API added with [BAHIR-89], when used in pyspark, 
does not return a Dstream of <topic,message> tuples. 
In pyspark, when creating a Dstream using the new API ( mqttstream = 
MQTTUtils.createPairedStream(ssc, brokerUrl, topics) ) the expected contents of 
mqttstream should be a collections of tuples:

(topic,message) , (topic,message) , (topic,message) , ...

Instead, the current content is a flattened list:

topic, message, topic, message, topic, message, ...

that is hard to use.

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