Dynamic replication strategies in data grid |
| |
Authors: | Xiaohua Dong Zhongfu Wu |
| |
Institution: | [1]College of Computer Science, Chongqing University,Chongqing 400030, China [2]School of Economics and Business Administrator,Chongqing University, Chongqing 400030, China |
| |
Abstract: | Dynamic data replication is a technique used in data grid environments that helps to reduce access latency and network bandwidth
utilization. Replication also increases data availability thereby enhancing system reliability. In this paper we discuss the
issues with single-location strategies in large-scale data integration applications, and examine potential multiple-location
schemes. Dynamic multiple-location replication is NP-complete in nature. We therefore transform the multiple-location problem
into several classical mathematical problems with different parameter settings, to which efficient approximation algorithms
apply experimental results indicate that unlike single-location strategies our multiple-location schemes are efficient with
respect to access latency and bandwidth consumption, especially when the requesters of a data set are distributed over a large
scale of locations.
Biography: DONG Xiaohua(1972–), male, Ph.D. candidate, Lecturer, research direction:services management. |
| |
Keywords: | data grid approximation algorithms dynamic data replication multiple-location replication |
本文献已被 维普 SpringerLink 等数据库收录! |
|