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Graph Data Processing with Cypher

You're reading from Graph Data Processing with Cypher

Product type Book

Published in Dec 2022

Publisher Packt

ISBN-13 9781804611074

Pages 332 pages

Edition 1st Edition

Languages

Concepts

Author (1):

Ravindranatha Anthapu

Table of Contents (18) Chapters

Preface

1. Part 1: Cypher Introduction

2. Chapter 1: Introduction to Neo4j and Cypher

3. Chapter 2: Components of Cypher

4. Part 2: Working with Cypher

5. Chapter 3: Loading Data with Cypher

6. Chapter 4: Querying Graph

7. Chapter 5: Filtering, Sorting, and Aggregations

8. Chapter 6: List Expressions, UNION, and Subqueries

9. Part 3: Advanced Cypher Concepts

10. Chapter 7: Working with Lists and Maps

11. Chapter 8: Advanced Query Patterns

12. Chapter 9: Query Tuning

13. Chapter 10: Using APOC Utilities

14. Chapter 11: Cypher Ecosystem

15. Chapter 12: Tips and Tricks

16. Index

Why subscribe?

17. Other Books You May Enjoy

Troubleshooting a few common issues

When you are troubleshooting, logs are your friends. You must take a look at query log and debug log files to identify any issues. Please note that query logs are not available in Community Edition of Neo4j. If you are using Neo4j Desktop to create a database and test it, then you are using a single-user enterprise license, so you will have access to query logs. We will take a look at what information we have to troubleshoot issues and how we can fix them here:

A debug log tells you a lot about how memory is being used. Look out for JVM garbage collection (GC) pauses. If there are few GC pauses and they are smaller than 100 ms, then there should not be any issues. If there are lot of GC pauses and they are going above 100 ms, then the queries are using lot of heap. This could be due to a bad query, no indexes, or a query collecting a lot of data.
Query logs tell you how much time a query is taking. If you enable time tracking using dbms...

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Authors (1)

Ravindranatha Anthapu

Ravindranatha Anthapu has more than 25 years of experience in working with W3C standards or building cutting-edge technologies like integrating speech with mobile applications in the 2000s. He is a technology enthusiast who worked from operating system device drivers to writing compilers for C language to modern web technologies, transitioning seamlessly and bringing experience from each of these domains and technologies to deliver successful solutions today. As a Principal Consultant at Neo4j today, Ravindranatha works with large enterprise customers to make sure they are able to leverage graph technologies effectively across various domains.

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