Book Image

Distributed Computing in Java 9

Book Image

Distributed Computing in Java 9

Overview of this book

Distributed computing is the concept with which a bigger computation process is accomplished by splitting it into multiple smaller logical activities and performed by diverse systems, resulting in maximized performance in lower infrastructure investment. This book will teach you how to improve the performance of traditional applications through the usage of parallelism and optimized resource utilization in Java 9. After a brief introduction to the fundamentals of distributed and parallel computing, the book moves on to explain different ways of communicating with remote systems/objects in a distributed architecture. You will learn about asynchronous messaging with enterprise integration and related patterns, and how to handle large amount of data using HPC and implement distributed computing for databases. Moving on, it explains how to deploy distributed applications on different cloud platforms and self-contained application development. You will also learn about big data technologies and understand how they contribute to distributed computing. The book concludes with the detailed coverage of testing, debugging, troubleshooting, and security aspects of distributed applications so the programs you build are robust, efficient, and secure.
Table of Contents (17 chapters)
Title Page
Credits
About the Author
About the Reviewer
www.PacktPub.com
Preface
Customer Feedback
2
Communication between Distributed Applications
3
RMI, CORBA, and JavaSpaces

ZooKeeper for distributed computing


Zookeeper is the chosen solution for handling big data encounters in Hadoop. It is a performance-efficient distributed coordination service for distributed applications. It offers a simple interface for essential services such as naming, synchronization, configuration management, and group services.

ZooKeeper runs on Java and allows bindings for both C and Java programming.

The following diagram represents the architecture of the ZooKeeper:

In the preceding diagram, the LeaderNode is the only node having the write access. All the other nodes shown on the ZooKeeper Service are called followers, and they only delegate the requests to the Leader Node as represented earlier.

The request processor present in the leader node holds the responsibility for processing the request and handing over the result to the respective follower nodes so that they can take it forward from there in the process chain.

The atomic broadcast component is responsible for broadcasting...