Summary

In this chapter, you were introduced to the need for real-time data analytics systems and the advantages they have to offer in terms of getting the freshest data to business users, helping businesses improve their time to market, and minimizing any lost opportunity costs. The architecture of a typical real-time analytics system was presented, and the major components were described. A real-time analytics architecture using Apache Spark's Structured Streaming was also depicted. A few examples of prominent industry use cases of real-time data analytics were described. Also, you were introduced to a simplified Lambda Architecture using the combination of Structured Streaming and Delta Lake. The use case for CDC, including its requirements and benefits, was presented, and techniques for ingesting CDC data into Delta Lake were presented along with working examples leveraging Structured Streaming for implementing a CDC use case.

Finally, you learned a technique for progressively...