How Baidu’s Transaction Accounting System Handles Real‑Time Reconciliation

This article explains the design of Baidu's transaction accounting platform, covering business scenarios, the flow of transaction records, system architecture, real‑time data synchronization via Canal, Elasticsearch storage strategies, consistency guarantees, and aggregation techniques for accurate merchant financial reconciliation.

Backend ArchitectureCanalElasticsearch

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How Baidu’s Transaction Accounting System Handles Real‑Time Reconciliation

Youzan Coder

May 20, 2020 · Backend Development

Real-Time Loss Prevention System: Architecture and Implementation at YouZan

YouZan’s real‑time loss‑prevention platform monitors database binlogs, transforms and verifies transaction data across five loosely coupled layers, handling 200 million daily messages and 60 million checks with dynamic sharding, caching and distributed locks to detect over‑charges, duplicate refunds, migration inconsistencies and unauthorized data changes.

Distributed SystemsHBaseMessage Queue

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Real-Time Loss Prevention System: Architecture and Implementation at YouZan