Design and Implementation of Distributed Cache System in Cluster Environment

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.

Author(s):  
Kingston Xerxes Theophilus Lamola ◽  

The adoption of enterprise application architecture (EAA) for supply chain management (SCM) in small and medium enterprises (SMEs) was influenced by the owner’s physiognomies and incitements (OPIs) on a routine basis. The study employs a quantitative approach based on a linear regression model, which uses diagnosis tests “Cronbach's Alpha, normal distribution, and Kolmogorov-Smirnov test” that makes descriptive statistics possible on Pearson correlations, analysis of variance (ANOVA), Pearson's Coefficients, and linear regression. The study examines whether OPIs affect the adoption of EAA for SCM in SMEs within Capricorn District Municipality. The paper exploits the original data set of 310 SMEs, targeting predominantly both SMEs’ owners and managers to run linear regression models with the dependent variable “actual adoption of EAA” and independent variable “OPIs”. A novel piece of authenticity for the models is the incorporation of OPIs within the SCM activities and whether there were any, collaborative influences affecting the adoption of EAA. The findings have a bearing on SMEs’ SCM growth strategies, directed towards the technology acceptance model.


2013 ◽  
Vol 462-463 ◽  
pp. 1106-1109
Author(s):  
Hong Yuan Ma

Web search engine caches the results which is frequently queried by users. It is an effective approach to improve the efficiency of Web search engines. In this paper, we give some valuable experience in our design and implementation of a Web search engine cache system. We present there design principles: logical layer processing, event-based communication architecture and avoiding frequent data copy. We also introduce the architecture presented in practice, including connection processor, application processor, query results caching processor, inverted list caching processor and list intersection caching processor. Experiments are conducted in our cache system using a real Web search engine query log.


Author(s):  
Roisin Donnelly ◽  
Ciara O’Farrell

Professional development for academic staff in e-learning is currently a priority for higher education institutions in the Republic of Ireland, as lecturers experience increasing demands to incorporate e-learning into their teaching practice. This chapter reports on the design and implementation of a blended module in e-learning for the continuous professional development of such lecturers. In it the co-authors (who designed and developed the module) discuss the effectiveness of exposing lecturers as online students in order to experience first-hand the advantages and disadvantages of e-learning. It argues that a constructivist, collaborative interaction can provide the scaffolding for lecturers’ future journeys into e-learning and into constructivist practices within their own teaching. Although this approach is still in its infancy, important outcomes were achieved in terms of influencing lecturers’ thinking and approaches to both their own and to their students’ learning.


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