Title :
A Dynamic Replica Placement Mechanism Based on Response Time Measure
Author :
Wang, Wenfeng ; Wei, Wenhong
Author_Institution :
Sch. of Inf. Eng., Nanchang Inst. of Technol., Nanchang, China
Abstract :
Most of existing replication strategies mainly distribute replicas based on access frequency or total response time of the whole system, lacking of consideration of the response time requirement of a single request. To overcome the deficiencies, a model called RPRTM (Replica Placement based on Response Time Measure) is presented, and a genetic algorithm is designed to figure out the model. Example analysis indicates that the RPRTM can satisfy every node´s response time requirement of a single request and minimize the number of replicas at the same time. In addition, it reduces the total response time at most to improve the whole system performance.
Keywords :
distributed processing; genetic algorithms; storage management; distributed storage systems; dynamic replica placement mechanism; genetic algorithm; response time measure; Algorithm design and analysis; Delay; Distributed computing; Frequency measurement; Genetic algorithms; Mobile communication; Mobile computing; Peer to peer computing; System performance; Time measurement; access frequency; distributed storage system; genetic algorithm; replica scheme; response time;
Conference_Titel :
Communications and Mobile Computing (CMC), 2010 International Conference on
Conference_Location :
Shenzhen
Print_ISBN :
978-1-4244-6327-5
Electronic_ISBN :
978-1-4244-6328-2
DOI :
10.1109/CMC.2010.46
