Introduce Metadata-based Service Registration, Routing and Load Balancing for Seata

[YoWuwuuuw]

Check Ahead

• I have searched the issues of this repository and believe that this is not a duplicate.

• I am willing to try to implement this feature myself.

Why you need it?

In the existing Seata service registration and discovery system:

• There is a lack of differentiation information between server instances, limiting clients to random/round-robin load balancing based on IP and port.

• It cannot support:

  • Metadata-based load balancing strategies such as weighted random.

  • Region/data center routing, version, capability, and environment isolation, and more granular canary and evolution strategies.

How it could be?

Introduce a metadata-based service registration and discovery mechanism:

• Metadata-aware load balancing capabilities

• Configurable and composable routing filtering mechanism

While maintaining full compatibility with existing registration and discovery behavior, it provides Seata with higher-level service governance capabilities.

Other related information

No response