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Fast Data Processing Systems with SMACK Stack
Fast Data Processing Systems with SMACK Stack

Fast Data Processing Systems with SMACK Stack: Combine the incredible powers of Spark, Mesos, Akka, Cassandra, and Kafka to build data processing platforms that can take on even the hardest of your data troubles!

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Fast Data Processing Systems with SMACK Stack

Chapter 2.  The Model - Scala and Akka

This chapter is divided into two parts: Scala (the language) and Akka (the actor model implementation for the JVM).

As this book is about architecture, and Spark is built in Scala following an actor's model, in this book we decided to show examples only using Scala as the language. In this way, we have made room for architectural issues preventing lead content.

In the Apache Spark world, there are four spoken languages: Java, Scala, Python, and R. To continue with our training, we need to know one of these four languages. Most books expose all examples in each of these languages.

If you are reading this section and do not know Scala, welcome to the introduction course for data manipulation. This chapter is a dojo where you will learn some Scala tricks to manipulate data (because it is not a book about Scala, some powerful topics were not mentioned, such as null-less containers, for example, option, either, try, pattern matching, and case...

The language - Scala

The objective of this section is to think in a functional programming way.

As good data architects, here we will understand collections. We will not cover other issues of the language other than collection management.

We need to be clear regarding the following two statements:

  • Scala collections are different from Java collections
  • Scala collections are different from Spark collections

So, a list in Java is different from a list in Scala. Lists are a fundamental part of functional languages. The first functional programming language, LISP, is an acronym for List Processing.

We have to master three key concepts of functional programming to understand Scala collections:

  • Predicates
  • Literal functions (anonymous functions)
  • Implicit loops

A predicate is just a function that receives several parameters and returns a Boolean value.

For example:

def isOdd (i: Int) = if (i % 2 != 0) true else false 

A literal function is an alternate syntax for defining a function. It's useful when we...

The model - Akka

The objective of this section is to think about our systems in the Actor Model.

The Actor Model is a mathematical model. As Obi Wan would say, it's "An elegant weapon for a more civilized age." The Actor Model was developed by Carl Hewitt, Peter Bishop, and Richard Steiger in 1973 at the Massachusetts Institute of Technology, in a paper entitled, A Universal Modular Actor Formalism for Artificial Intelligence.

It was a more civilized age, because computer science was developed by mathematicians and all the programming was made with their bare hands. Well, if the Actor Model has been around for more than 40 years, at what point did we turn to the dark side? The answer is neither short nor simple to explain.

The quick and dirty answer is: because they developed a very advanced model for the technology of those days. The problem is that we had to develop a lot of technology in software and hardware to reap benefits from the Actor Model. Modern compilers...

Summary

This chapter was a Scala-Akka dojo where you learnt through several Katas. In the first part we explored the fundamental parts of Scala; in the second part we focused on the Akka actor model.

It is true, there were many important topics not covered in this chapter, such as futures, promises, and parallel collections. But we tried to provide a reference to them, although not an exhaustive guide.

So, as all the book examples are in Scala, we need to master fundamental techniques before delve into the SMACK stack.

The Actor Model is important to understand the architecture and operation of Spark.

In the following chapter, we will explore Spark design and provide some examples using Scala.

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Key benefits

  • *This highly practical guide shows you how to use the best of the big data technologies to solve your response-critical problems
  • *Learn the art of making cheap-yet-effective big data architecture without using complex Greek-letter architectures
  • *Use this easy-to-follow guide to build fast data processing systems for your organization

Description

SMACK is an open source full stack for big data architecture. It is a combination of Spark, Mesos, Akka, Cassandra, and Kafka. This stack is the newest technique developers have begun to use to tackle critical real-time analytics for big data. This highly practical guide will teach you how to integrate these technologies to create a highly efficient data analysis system for fast data processing. We’ll start off with an introduction to SMACK and show you when to use it. First you’ll get to grips with functional thinking and problem solving using Scala. Next you’ll come to understand the Akka architecture. Then you’ll get to know how to improve the data structure architecture and optimize resources using Apache Spark. Moving forward, you’ll learn how to perform linear scalability in databases with Apache Cassandra. You’ll grasp the high throughput distributed messaging systems using Apache Kafka. We’ll show you how to build a cheap but effective cluster infrastructure with Apache Mesos. Finally, you will deep dive into the different aspect of SMACK using a few case studies. By the end of the book, you will be able to integrate all the components of the SMACK stack and use them together to achieve highly effective and fast data processing.

Who is this book for?

If you are a developer, data architect, or a data scientist looking for information on how to integrate the Big Data stack architecture and how to choose the correct technology in every layer, this book is what you are looking for.

What you will learn

  • * Design and implement a fast data Pipeline architecture
  • * Think and solve programming challenges in a functional way with Scala
  • * Learn to use Akka, the actors model implementation for the JVM
  • * Make on memory processing and data analysis with Spark to solve
  • modern business demands
  • * Build a powerful and effective cluster infrastructure with Mesos and Docker
  • * Manage and consume unstructured and No-SQL data sources with Cassandra
  • * Consume and produce messages in a massive way with Kafka
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Publication date : Dec 22, 2016
Length: 376 pages
Edition : 1st
Language : English
ISBN-13 : 9781786467201
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Product Details

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Length: 376 pages
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Language : English
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Apache
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Table of Contents

9 Chapters
1. An Introduction to SMACK Chevron down icon Chevron up icon
2. The Model - Scala and Akka Chevron down icon Chevron up icon
3. The Engine - Apache Spark Chevron down icon Chevron up icon
4. The Storage - Apache Cassandra Chevron down icon Chevron up icon
5. The Broker - Apache Kafka Chevron down icon Chevron up icon
6. The Manager - Apache Mesos Chevron down icon Chevron up icon
7. Study Case 1 - Spark and Cassandra Chevron down icon Chevron up icon
8. Study Case 2 - Connectors Chevron down icon Chevron up icon
9. Study Case 3 - Mesos and Docker Chevron down icon Chevron up icon

Customer reviews

Rating distribution
Full star icon Full star icon Full star icon Full star icon Full star icon 5
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Sumit Pal Feb 10, 2017
Full star icon Full star icon Full star icon Full star icon Full star icon 5
This is an extremely useful book from an author of high pedigree. This book covers each of the associated topics of the SMACK stack, with coverage both in width and depth.Each chapter very well organized and written with excellent diagrams explaining complex concepts and architectural underpinnings with working code.Book is useful for someone at the intermediate and advanced level OR even for someone who wants to get their feet wet with the associated technologies in the SMACK space.The book is useful from a practical hands on experience as well as experience from an Architectural perspective as to where each of the components fit and the associated architectural and desgn trade-offs.
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