Apache Sparkin this quick tutorial.
Google search interests for Apache Spark has sky rocketed recently, indicating a wide range of interest. (108,000 searches in July according to Google Ad Word Tools about ten times more than Microservices).
Apache Spark, an open source cluster computing system, is growing fast. Apache Spark has a growing ecosystem of libraries and framework to enables advanced data analytics. Apache Spark's rapid success is due to its power and and ease-of-use. It is more productive and has faster runtime than the typical MapReduce based analysis. Apache Spark provides in-memory, distributed computing. It has APIs in Java, Scala, Python, and R. The Spark Ecosystem is show below.
See the full Apache Spark Tutorial.