Based On The Biological Pesticide Of Ddbs E-commerce System Design And Implementation

E-commerce industry is growing rapidly and its site has reached15,600and thecountry’s trading volume has reached250billion yuan in2010. Behind these hugenumbers, mass data storage and access needs become more and more important.Traditional centralized database faced one challenge when meet the massive data access,storage, and expansion of the database needs. The centralized database needs toconfigure high-end servers to meet the massive data access needs to meet, but thehigh-end servers will contact bottlenecks with the increase of data traffic and storage.Rely on the upgrading of hardware to meet the demand for large traffic will lead towaste of hardware inevitably. So, more and more large-scale e-commerce businessesstarted to look towards the distributed database system, such as Taobao and JingDong.Distributed database system has been commercialized, and many database productssupport distributed database operations, but the product itself provides the underlyingstorage function only. Commercial software considers the average of performance,rather than target on to strength a function feature. Distributed database technologyneeds to combine with the overall system architecture in order to manifest the advantageand play the best role. This is also the reason why design a distributed database systemfor biological pesticides e-commerce system.Biological pesticides e-commerce system is a large e-commerce platform toprovide online trading, technical advice, merchandise display multiple functions. It hasto meet a mass of data access and storage everyday and the data consistency isimportant when the order is trading, in addition to consider the expansion of the system,the distributed data base system becomes the suitable choice. So this article designed amaster-slave distributed database system based on cache to improve the property of thesystem. This master-slave distributed database based on cache not only adopts thesubdivision ways to reduce the master server load but also brings many optimizationstrategies to improve the system performance, such as adds one cache mechanism toimprove the efficiency of the whole system query efficiency, brings in the improvingalgorithms of Bloom Filter to reduce the number of air operations. In order to improvethe access efficiency, the slave server brings in index mechanism. In addition, themaster-slave distributed database system based on cash introducing message queuingmechanism, additional coordination to resolve the data inconsistency problem, read andwrite conflicts, write-write conflicts and other issues.The biological pesticide e-commerce system lays on the distributed database.Moreimportant, it is able to be expended more conveniently and is able to avoid unnecessary waste when upgrade hardware. The whole system adopts Visual Studio2010as thedevelop platform, C#programming language. At present, biological pesticidee-commerce system has been put into market applications successfully.