Book Image

Fast Data Processing Systems with SMACK Stack

By : Raúl Estrada
Book Image

Fast Data Processing Systems with SMACK Stack

By: Raúl Estrada

Overview of this book

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.
Table of Contents (15 chapters)
Fast Data Processing Systems with SMACK Stack
Credits
About the Author
About the Reviewers
www.PacktPub.com
Preface

Authentication and authorization (roles)


In Cassandra, the authentication and authorization must be configured on the cassandra.yaml file and two additional files. The first file is used to assign rights to users over the key space and column family, while the second assigns passwords to users. These files are called access.properties and passwd.properties, and are located in the Cassandra installation directory. These files can be opened using our favorite text editor in order to be successfully configured.

Setting up a simple authentication and authorization

Perform the following steps:

  1. In the access.properites file we add the access rights to users and the permissions to read and write certain key spaces and columnfamily. Syntax:
            keyspace.columnfamily.permits = users 
     
            Example 1: 
            hr <rw> = restrada 
     
            Example 2: 
            hr.cars <ro> = restrada, raparicio 
    
    • In example 1, we give full rights in the Key Space hr to restrada while in example 2 we...