- https://www.tutorialspoint.com/apache_kafka/apache_kafka_introduction.htm
- https://mapr.com/blog/getting-started-sample-programs-apache-kafka-09/
- http://cloudurable.com/blog/kafka-tutorial-v1/index.html
- http://cloudurable.com/blog/spark-tutorial-part3-streaming-mlib/index.html
- https://www.confluent.io/blog/stream-data-platform-1/
- https://www.confluent.io/blog/stream-data-platform-2/