The delay time-based server selection algorithm for energy-efficient redundant execution of processes. (2015)

• Record Type: Journal Article
• Authors: Enokido, Tomoya; Duolikun, Dilawaer; Takizawa, Makoto
• Is Part Of: International journal of communication networks and distributed systems. Volume 15:Number 4(2015)
• Page Start: 366
• Page End: 385
• Publication Date: 2015
• Subjects: energy efficiency -- server clusters -- fault tolerance -- energy consumption models -- redundant delay time-based algorithm -- green IT -- multi server selection; Computer networks -- Periodicals; Telecommunication systems -- Periodicals; Electronic data processing -- Distributed processing -- Periodicals; 004.6
• Languages: English
• ISSNs: 1754-3916

Abstract

It is critical to discuss how to realise not only fault-tolerant but also energy-efficient server cluster systems. In this paper, we propose the redundant delay time based (RDTB) algorithm to select multiple servers for redundantly and energy-efficiently performing application processes. In the RDTB algorithm, it is not necessary to collect a state of every replica to estimate the energy consumption of servers. We evaluate the RDTB algorithm compared with the basic round-robin (RR) and redundant power consumption laxity-based (RPCLB) algorithms. From the evaluation, the total energy consumption of homogeneous and heterogeneous clusters in the RDTB algorithm can be maximally reduced to 36% and 19% of the RR algorithm, respectively. The number of messages exchanged between a load balancer and servers in the RDTB algorithm can be maximally reduced to 90% of the RPCLB algorithm. Therefore, the RDTB algorithm is more useful than the RR and RPCLB algorithms for real environment.