How to Effectively Split Your Microservices: Principles and Strategies
This article systematically explores the challenges of microservice decomposition, presenting static and dynamic solutions, architectural principles, and practical guidelines to help organizations design scalable, reliable, and business‑aligned service boundaries.
Background
Microservices are now widely adopted, but the methods for splitting them remain confusing. This article introduces service‑splitting issues from multiple perspectives in a systematic, comprehensive, and unified manner.
Problem Definition
Where are the specific issues in service division?
Problems need a comprehensive, unified view
Service splitting is a complex domain that requires holistic consideration across multiple layers, including static and dynamic partitioning rules.
Company strategic layer
Business management layer
Technical architecture layer
Concrete implementation layer
Static partitioning solutions
Dynamic partitioning solutions Issues encountered during microservice evolution and their remedies.
Problem Solving
Determining whether a particular business function should reside in a specific service.
Key Principles
Static Partitioning Solutions
Use business models to establish service division at the business layer, splitting roles and functions within domains. Apply TOGAF's AMD architecture design method for enterprise digitalization.
Technical architecture layer
Many think microservice splitting is purely a technical issue, but upstream/downstream work methods are tightly linked. The technical layer combines four design principles, 19 solutions, DDD, architectural patterns, and technical considerations to form splitting rules.
Concrete implementation layer Consider data consistency, CAP theorem, and BASE principles when implementing services.
Dynamic Partitioning Solutions
The evolution and decision‑making process requires a governance group to decide, for example, whether a new business line can be added to the platform.
Lean Product
For legacy system refactoring, refer to "Microservice Architecture and Practice, 2nd Edition".
Conclusion
CMMI5 TOGAF Version 9.1 Enterprise IT Architecture Transformation – Alibaba Middle‑Platform Strategy and Practice Microservice Architecture and Practice, 2nd Edition
Source: https://www.jianshu.com/p/5f00f4b635b1
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