Production-Ready Microservices by Susan J. Fowler

Author:Susan J. Fowler
Language: eng
Format: epub
Publisher: O'Reilly Media
Published: 2016-12-09T05:00:00+00:00

What type of data does each microservice need to store?

What is the schema needed by each microservice? And how often will it need to be changed?

Do the microservices need strong consistency or eventual consistency?

Are the microservices read-heavy, write-heavy, or both?

Does the database need to be scaled horizontally or vertically?

Regardless of whether the database is maintained as part of the application platform or by each individual microservice development team, database choice should be driven by the answers to those questions. For example, if the database in question needs to be scaled horizontally, or if reads and writes need to be made in parallel, then a NoSQL database should be chosen, since relational databases struggle with horizontal scaling and parallel reads and writes.

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