SOFAStack

Alipay Double 11: 544,000 TPS Architecture Explained Research Baseline Two different Double 11 peak figures circulate widely, and they measure different layers of the stack — conflating them is the most common error in write-ups on this topic: Figure What it actually measures Layer Source 544,000 TPS Alipay payment transactions per second (2019) Payment / ledger OceanBase engineering 61 million QPS Database queries per second at the same 2019 peak Database OceanBase engineering 583,000 orders/sec Order creation on Alibaba’s e-commerce platform (2020) Commerce / order intake Alibaba Group press release [!IMPORTANT] The widely-quoted 583,000 figure is order creation throughput on Alibaba’s commerce platform, not Alipay’s payment TPS. Alipay’s reported payment peak is 544,000 TPS. This article is about the payment-side architecture, so 544,000 TPS is the relevant number. ...

← Series hub ← Prev • Next → Answer-first: 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. ...