The Backend Engineering Show with Hussein Nasser artwork

CQRS is probably the cause of the Microservices madness

The Backend Engineering Show with Hussein Nasser

English - February 07, 2021 16:33 - 7 minutes - 5.03 MB - ★★★★★ - 5 ratings
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Reads and Writes don’t have to live in the same database, data model or even the same service. Let us discuss CQRS


no separation


one service that does read/write


partial separation


You can keep one service but backend have multiple connections with different users same database


full separation


Read services / write services


two databases OLAP / OLTP


Pros


scalability


security


Cons


complex and very hard to follow, what we see with microservices..


resources


https://martinfowler.com/bliki/CQRS.html


http://codebetter.com/gregyoung/2010/02/16/cqrs-task-based-uis-event-sourcing-agh/