Is it a good idea for microservices to share a common database?

Question

I've seen folks refer to this idea in part, trivially, as “each microservice should own and control its own database and no two services should share a database.” The idea is sound: don't share a single database across services because then you run into conflicts like competing read/write patterns, data-model conflicts . 14 июл. 2016 г.

Fundamentals. By definition, microservices should be loosely coupled, scalable, and independent in terms of development and deployment. Therefore, the database per service is a preferred approach as it perfectly meets those requirements.

Can we use same database in microservices?

Yes, it's possible to integrate a database for microservices. You can create a single shared database with each service accessing data using local ACID transactions.

The general guideline in microservices is to not share code. Things that can be shared are libraries that don't changed very often like US States, color, etc. To answer your question what about the code for the communication between the microservices , I would say not to share this code.

Expert · Answer

Fundamentals. By definition, microservices should be loosely coupled, scalable, and independent in terms of development and deployment. Therefore, the database per service is a preferred approach as it perfectly meets those requirements.

Expert · Answer

Yes, it's possible to integrate a database for microservices. You can create a single shared database with each service accessing data using local ACID transactions.

Expert · Answer

The general guideline in microservices is to not share code. Things that can be shared are libraries that don't changed very often like US States, color, etc. To answer your question what about the code for the communication between the microservices , I would say not to share this code.

Is it a good idea for microservices to share a common database?

Should microservices share a database?

Can we use same database in microservices?

Should microservices share common code?

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