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You're reading from Learning Neo4j 3.x Effective data modeling, performance tuning and data visualization techniques in Neo4j

Product type Paperback

Published in Oct 2017

Publisher Packt

ISBN-13 9781786466143

Length 316 pages

Edition 2nd Edition

Languages

Java

Tools

Neo4j

Concepts

Data Visualization

Authors (2):

Jerome Baton

Rik Van Bruggen

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Table of Contents (17) Chapters

Preface

1. Graph Theory and Databases

2. Getting Started with Neo4j FREE CHAPTER

3. Modeling Data for Neo4j

4. Getting Started with Cypher

5. Awesome Procedures on Cypher - APOC

6. Extending Cypher

7. Query Performance Tuning

8. Importing Data into Neo4j

9. Going Spatial

10. Security

11. Visualizations for Neo4j

12. Data Refactoring with Neo4j

13. Clustering

14. Use Case Example - Recommendations

15. Use Case Example - Impact Analysis and Simulation

16. Tips and Tricks

Concepts

In a causal cluster, there can be two categories of servers. Core servers are the most important over read replica servers, as replicas are disposable and can be either added or removed during the scaling of the cluster. Let's go through their roles.

Core servers

Core servers are the most important servers of a cluster. The minimum number of core servers in a cluster is three for a transaction is reported as successful to the user who started it when the update generated is propagated to half the size of the cluster plus 1.

The roles of core servers are as follows:

They are the targets of all the updating queries; they uphold data consistency via the consensus commit
They are responsible for data safety
They...

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Authors (2)

Van Bruggen

Rik Van Bruggen is the VP of Sales for Neo Technology for Benelux, UK, and the Nordic region. He has been working for startup companies for most of his career, including eCom Interactive Expertise, SilverStream Software, Imprivata, and Courion. While he has an interest in technology, his real passion is business and how to make technology work for a business. He lives in Antwerp, Belgium, with his wife and three lovely kids, and enjoys technology, orienteering, jogging, and Belgian beer.

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Jerome Baton

Jérôme Baton started hacking computers at the age of skin problems, gaming first then continued his trip by self-learning Basic on Amstrad CPC, peaking on coding a full screen horizontal starfield, and messing the interlace of the video controller so that sprites appeared twice as high in horizontal beat'em up games. Disks were three inches for 178 Kb then. Then, for gaming reasons, he switched to Commodore Amiga and its fantastic AMOS Basic. Later caught by seriousness and studies, he wrote Turbo Pascal, C, COBOL, Visual C++, and Java on PCs and mainframes at university, and even Logo in high school. Then, Java happened and he became a consultant, mostly on backend code of websites in many different businesses. Jérôme authored several articles in French on Neo4j, JBoss Forge, an Arduino workshop for Devoxx4Kids, and reviewed kilos of books on Android. He has a weakness for wordplay, puns, spoonerisms, and Neo4j that relieves him from join(t) pains. Jérôme also has the joy to teach in French universities, currently at I.U.T de Paris, Université Paris V - René Descartes (Neo4j, Android), and Université de Troyes (Neo4j), where he does his best to enterTRain the students. When not programming, Jérôme enjoys photography, doing electronics, everything DIY, understanding how things work, trying to be clever or funny on Twitter, and spends a lot of time trying to understand his kids and life in general.

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