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Hands-On Cloud-Native Microservices with Jakarta EE

You're reading from   Hands-On Cloud-Native Microservices with Jakarta EE Build scalable and reactive microservices with Docker, Kubernetes, and OpenShift

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Product type Paperback
Published in Jan 2019
Publisher Packt
ISBN-13 9781788837866
Length 352 pages
Edition 1st Edition
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Authors (2):
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Luigi Fugaro Luigi Fugaro
Author Profile Icon Luigi Fugaro
Luigi Fugaro
Mauro Vocale Mauro Vocale
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Mauro Vocale
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Table of Contents (14) Chapters Close

Preface 1. Jakarta EE - the New Open Source Life of Java EE FREE CHAPTER 2. Microservices and Reactive Architecture 3. Cloud-Native Applications 4. Building Microservices Using Thorntail 5. Eclipse MicroProfile and Transactions - Narayana LRA 6. Linux Containers 7. Platform as a Service 8. Microservices Patterns 9. Deployment 10. Monitoring 11. Building Microservices Using Spring Boot 2 12. Building Microservices Using Vert.X 13. Other Books You May Enjoy

The saga pattern

The saga pattern is the solution, proposed by microservice architectures to manage transactions in distributed systems.

A saga is a sequence of operations that represent a unit of work that can be undone by the compensation action. When an operation is successful, it publishes a message or event to trigger the next local transaction in the saga; otherwise, the saga executes a series of compensating transactions that undo the changes that were made by the preceding. Each operation can be seen as a local transaction; so, it performs a commit or rollback to its own data source, but communicates with all other operations or local transactions that build the saga.

The saga guarantees that either all of the operations complete successfully, or the corresponding compensation actions are run for all of the executed operations, to cancel partial processing.

This approach...

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