- http://spark.apache.org/docs/latest/streaming-kafka-integration.html
- http://stackoverflow.com/questions/22338025/kafka-consumers-in-spark-streaming-parallel-consumption-in-worker-nodes
- http://stackoverflow.com/questions/22132968/run-spark-kafka-wordcount-java-example-without-run-example-script
- http://spark.apache.org/docs/latest/streaming-programming-guide.html
- https://issues.apache.org/jira/browse/SPARK-944