Alipay Double 11 Technology & SOFAStack Architecture
← Series hub ← Prev • Next → Executive Summary & Quick Answer: Alipay’s tech stack combines SOFAStack middleware, OceanBase distributed databases, and lightweight Service Mesh sidecars to achieve high-density microservice deployments with low inter-service RPC overhead. Prerequisite: Phase 3: Operations Playbook This phase describes the core technology layers and software engineering paradigms that Alipay developed to scale its transaction processing systems. Building systems for Double 11 is not only an infrastructure scaling challenge; it is a software complexity challenge. The engineering team had to design a unified core platform capable of handling thousands of distinct business requirements (promotions, installment plans, international cards) without turning the codebase into an unmaintainable monolith. ...