Research About Bank Cash Management Method Based On Massive Data Cache

To maximize the stability in bank cash management,data cache is adopted in cash management.The massive data of its clients of Postal Savings Bank of China will inevitably delay the data retrieval or data processing.However,cash management method has high requirements on transaction response and processing timeliness.Thus it is necessary to apply mass data caching technology.The main work of this thesis is as follows:(1)Massive data processing based on rule engine.If the cache strategy is based on the original data of the cash management method of the Post bank,it will be limited by the memory capacity.Therefore,it is necessary to propose a data simplification strategy before caching.This data reduction is extracted according to data characteristics and targets to improve the efficiency of cache query or retrieval.At the same time,the data simplification method changes the traditional data simplification method and service module fusion mode,and separates the data simplification method and service based on rules,realizing the independent data simplification method and greatly enhancing the flexibility of data simplification processing method.(2)Massive data cache processing.The current Memcached technology has some disadvantages,such as large memory consumption during operation.The larger the amount of data in the cache is,the longer the cache delay is,which greatly reduces the application performance.Therefore,this thesis proposes the memory allocation mechanism of mass data cache,the processing mechanism of main event and worker event,and the preloading cache and replacement strategy.In the replacement strategy,the replacement strategy based on two LRU queues is proposed,which can solve the problem of "unhit" in the cache data query.Finally,a Memcached system is implemented from a distributed point of view.Through this distributed design,multiple copies of cached data can be copied,which can improve the performance and processing efficiency of the cache system,and thus better apply to big data processing scenarios.(3)Cash management system of postal bank.According to the problems existing in the cash business management of postal bank at the present stage,this thesis puts forward the research scheme of the cash management method,and develops the core function modules of the system,mass capital data management of banks,mass account data cache management,mass data cache of public investment and financing transaction information processing,etc.The application results show that the cash management system based on massive data cache can maximize the efficiency and stability of bank cash management data and business execution.