Скачать или смотреть CQRS is probably the cause of the Microservices madness

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/...

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