2014 ◽  
Vol 635-637 ◽  
pp. 1530-1534
Author(s):  
Yuan Qiang Huang

Within the layered enterprise application architecture, database is usually the bottleneck of system. Cache technology can significantly improve the system performance and scalability by caching the data in application layer. Firstly, this paper discussed the significance and importance of the Distributed Cache System. Our system provided two kinds of cache mechanism, including replicated cache and partitioned cache. Each of these has advantages and disadvantages. The design and implementation of this system covered problems including consistent hashing arithmetic. This paper described and analyzed data distribution, data update and the procedure of operations in different cache mechanisms. At last, we made the compared test between our system and the similar product, Memcached. We found that there are both advantages and disadvantages of these two products, it points out the direction for our future improvement.


2021 ◽  
pp. 003-015
Author(s):  
А.Yu. Doroshenko ◽  
◽  
B.V. Bodak ◽  

The software for the e-procurement system was developed based on .NET Core RESTful API with Open API specifications. The server side uses RESTful API which ensures compatibility with the ma-jority of clients and enables them to exchange information in JSON format. The authentication and authorization flow was implemented using OAuth open standard paired with Microsoft Identity Service. User roles and functionality were handled with a standalone service for authentication and registration that made our system efficient and scalable. Business logic was designed to be split into micro-services accessible through rout-ing controllers. This approach allowed us to separate the responsibilities between the server and the client side. Special authorization headers passed during modi-fication queries allowed us to control and restrict access to particular resources for unauthorized users. The distributed cache mechanism inside the data repository level was used in order to increase the responsiveness of the system. The state handling subsystem was designed utilizing Finite State Machine concepts. The developed system was verified using unit and integration tests.


2013 ◽  
Vol 380-384 ◽  
pp. 1969-1972
Author(s):  
Bo Yuan ◽  
Jin Dou Fan ◽  
Bin Liu

Traditional network processors (NPs) adopt either local memory mechanism or cache mechanism as the hierarchical memory structure. The local memory mechanism usually has small on-chip memory space which is not fit for the various complicated applications. The cache mechanism is better at dealing with the temporary data which need to be read and written frequently. But in deep packet processing, cache miss occurs when reading each segment of packet. We propose a cooperative mechanism of local memory and cache. In which the packet data and temporary data are stored into local memory and cache respectively. The analysis and experimental evaluation shows that the cooperative mechanism can improve the performance of network processors and reduce processing latency with little extra resources cost.


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