Audit replication in stock trading system

This paper describes audit replication and hot failover mechanisms in Next Generation Trading System of Shanghai Stock Exchange. Firstly, concepts and features of audit log and replication are introduced. A memory-based audit replication model is proposed. Secondly, date structures, functional modules and host deployment are described to implement the model. Normal audit replication mechanism and host hot failover mechanism are described as well. Thirdly, several performance enhancement technologies are introduced, such as algorithm optimization and operating system feature utilization. This paper provides reference for architecture designers on enterprise systems with high performance and high availability requirements.