February 2019
Intermediate to advanced
446 pages
10h 55m
English
Content preview from Mastering Microservices with Java - Third Edition
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Distributed sagas
The distributed sagas pattern has become very popular in the last few years. However, sagas were first introduced in 1987 by Hector Garcia-Molina and Kenneth Salem in their paper, SAGAS (http://www.cs.cornell.edu/andru/cs711/2002fa/reading/sagas.pdf). It was primarily written for a single relational database, and defines a way to handle system failures for long-running transactions. The same mechanism is used in the microservices world to handle distributed transactions, and hence the pattern is named distributed sagas.
Caitie McCaffrey defined distributed sagas as follows:
A distributed saga is a collection of requests and compensating requests that represents a single business level action.
Steps 1 to 5 in the following ...
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