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Mastering MongoDB 4.x

You're reading from   Mastering MongoDB 4.x Expert techniques to run high-volume and fault-tolerant database solutions using MongoDB 4.x

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Product type Paperback
Published in Mar 2019
Publisher Packt
ISBN-13 9781789617870
Length 394 pages
Edition 2nd Edition
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Author (1):
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Alex Giamas Alex Giamas
Author Profile Icon Alex Giamas
Alex Giamas
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Table of Contents (20) Chapters Close

Preface 1. Section 1: Basic MongoDB – Design Goals and Architecture FREE CHAPTER
2. MongoDB – A Database for Modern Web 3. Schema Design and Data Modeling 4. Section 2: Querying Effectively
5. MongoDB CRUD Operations 6. Advanced Querying 7. Multi-Document ACID Transactions 8. Aggregation 9. Indexing 10. Section 3: Administration and Data Management
11. Monitoring, Backup, and Security 12. Storage Engines 13. MongoDB Tooling 14. Harnessing Big Data with MongoDB 15. Section 4: Scaling and High Availability
16. Replication 17. Sharding 18. Fault Tolerance and High Availability 19. Other Books You May Enjoy

ACID

ACID stands for atomicity, consistency, isolation, and durability. In the following sections, we will explain what each of these means for our database design and architecture.

Atomicity

Atomicity refers to the concept that transactions need to be atomic. Either it succeeds and its results are visible to every subsequent user reading them, or it fails and every change is rolled back to the point it was at before it started. Either all actions in a transaction occur, or none at all.

A simple example to understand atomicity is by transferring money from account A to account B. Money needs to be credited from account A and then debited into account B. If the operation fails midway, then both accounts A and B need to be reverted...

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