Microservices Should Form a Polytree
3 days ago
- #microservices
- #architecture
- #polytree
- Microservices can evolve into complex, hard-to-manage systems if not properly structured.
- Proposes using a polytree structure for microservices to avoid complexity and maintain clarity.
- A polytree is a directed acyclic graph (DAG) whose undirected form is a tree, ensuring no cycles.
- Cyclical dependencies in microservices lead to issues like delocalized state and failure propagation.
- Undirected cycles, even without directed cycles, can still cause brittleness and scaling issues.
- Polytrees offer clear ownership, predictable failures, simpler reasoning, and independent evolution.
- The mathematical properties of polytrees translate to operational clarity and ease of system evolution.