Design Microservices Architecture with Patterns and Principles - Best Practices for CQRS and Instagram Database Architec

The video tutorial discusses the CQRS pattern and its application in Instagram's database architecture. It covers best practices for isolating commands and queries, such as using separate physical database servers for read and write operations. The tutorial explains the use of different database technologies, like NoSQL for reading and relational databases for CRUD operations. Instagram's database systems, including PostgreSQL for user information and Cassandra for user stories, are highlighted. The architectures of PostgreSQL and Cassandra, including master-replica and masterless designs, are also explored.

What are the best practices for isolating commands and queries in a database architecture?

Explain the significance of using different database technologies for reading and writing in the context of CQRS.

Describe the role of PostgreSQL and Cassandra in Instagram's database architecture.

What is the master-replica architecture in PostgreSQL, and how does it function during read and write operations?

How does Cassandra's peer-to-peer architecture differ from traditional master-slave database architectures?