January 2024
Intermediate to advanced
472 pages
15h 11m
English
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5 Distributed transactions
This chapter covers
- Creating data consistency across multiple services
- Using event sourcing for scalability, availability, lower cost, and consistency
- Writing a change to multiple services with Change Data Capture (CDC)
- Doing transactions with choreography vs. orchestration
In a system, a unit of work may involve writing data to multiple services. Each write to each service is a separate request/event. Any write may fail; the causes may include bugs or host or network outages. This may cause data inconsistency across the services. For example, if a customer bought a tour package consisting of both an air ticket and a hotel room, the system may need to write to a ticket service, a room reservation service, and a payments ...
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