Design Microservices Architecture with Patterns and Principles - The Shared Database Anti-Pattern and Polyglot Persisten

The video discusses the shared database antipattern in microservices, highlighting its drawbacks such as loss of scalability, resilience, and independence. It suggests using a database per service pattern to avoid these issues. The video also covers the benefits of shared databases, like easier transaction management and data consistency, but warns of serious drawbacks. The polygode persistence principle is introduced, allowing different data storage technologies for different services. Finally, guidance is provided on choosing the right database for microservices, emphasizing the importance of understanding usage requirements.

What is a major drawback of using a shared database in microservices?

• Loss of independence

• Increased scalability

• Improved data consistency

• Enhanced resilience

Why is the database per service pattern recommended in microservices?

• To maintain microservices' core properties

• To create a single point of failure

• To ensure data duplication

• To simplify transaction management

Which of the following is a benefit of using a shared database?

• Enhanced resilience

• Improved scalability

• Increased microservice independence

• Easier transaction management

What does polyglot persistence allow in microservices architecture?

• Using only relational databases

• Eliminating the need for databases

• Choosing different data storage technologies for different services

• Using the same database technology for all services

When might it be better to use non-relational databases in microservices?

• When complex transactions are needed

• When data consistency is not important

• When only simple lookups are required

• When data duplication is desired