The previous section of this chapter is dedicated to providing you with an understanding of the basic building blocks of an NRT application and its logical overview. The next step is to understand the functional and systems view of the NRT architectural framework. The following figure clearly outlines the various architectural blocks and cross cutting concerns:
So, if I get to describe the system as a horizontal scale from left to right, the process starts with data ingestion and transformation in near real-time using low-latency components. The transformed data is passed on to the next logical unit that actually performs highly optimized and parallel operations on the data; this unit is actually the near real-time processing engine. Once the data has been aggregated and correlated and actionable insights have been derived, it is passed on...
