Monitor System Memory Database Applications

Monitoring systems are crucial for time-bargin system on the financial domain. Information about current dealing, commission, capital, holding and riskes of business are necessary monitoring targets for risk control. Traditional databases have defects for real-time support, and lagged responses are inefficient. Memory databases are used in the monitoring system for quick responses. Monitoring efficiency is greatlyaccelerated with memory databases, comparing with systems using harddisk database.Based on the analysis of some classic memory database systems, this thesis focuses on the memory database index technology, concurrent control technology, data recovery and reloading technology. According to the reqiuerment of actual project, monitor of future trading system is designed and implemented. Main job completed is as following:1 , Architect of monitor system: Based upon mass of study, feature and function of requirement is analyzed and memory database is studied.2 , Analysis and implementation of memory database: First, traditional data index technology T tree of memory database is refined. New data index technology of T-tail tree and its conrecte procedures are proposed; Second, new concurrent control protocol is proposed, based upon which recoverable spin lock technology is implemented.3, Memory database system in paper satisfied the need of quick response and real-time monitor.Test result demonstrated that memory database can provide effective support to financial monitor system.