An Energy-Efficient Process Replication Algorithm Based on the Active Time of Cores
An Energy-Efficient Process Replication Algorithm Based on the Active Time of Cores
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DOI：
10.1109/aina.2018.00036
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发表时间：
2018-05
期刊：
影响因子：
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通讯作者：
T. Enokido;Dilawaer Duolikun;M. Takizawa
中科院分区：
文献类型：
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作者：
T. Enokido;Dilawaer Duolikun;M. Takizawa
配备了虚拟机的服务器集群系统被广泛用于实现容错系统。在多个虚拟机上冗余地执行应用进程，以实现可靠的分布式应用。然而，由于在多个虚拟机上冗余地执行每个应用进程的多个副本，因此在服务器集群系统中消耗大量电能。提出了一种冗余主动时基(RATB)算法，为每个应用进程选择多个虚拟机，以减少服务器集群冗余执行每个应用进程所需的总电能。在RATB算法中，负载均衡器不需要与每个虚拟机通信来估计每个服务器的电能。因此，可以减少负载均衡器估计每个服务器和转发请求过程的电能的开销。我们从服务器集群的总电能和每个进程的平均响应时间两个方面对RATB算法进行了评估，并与基于冗余能耗松弛的算法(RECLB)进行了比较。
Server cluster systems equipped with virtual machines are widely used to realize fault-tolerant systems. Application processes are redundantly performed on multiple virtual machines to realize reliable distributed applications. However, a large amount of electric energy is consumed in a server cluster system since multiple replicas of each application process are redundantly performed on multiple virtual machines. In this paper, the redundant active time-based (RATB) algorithm is proposed to select multiple virtual machines for each application process so that the total electric energy of a server cluster to redundantly perform each application process can be reduced. In the RATB algorithm, it is not necessary for a load balancer to communicate with every virtual machine to estimate the electric energy of each server. Hence, the overhead of a load balancer to estimate the electric energy of each server and forward request processes can be reduced. We evaluate the RATB algorithm in terms of the total electric energy of a server cluster and the average response time of each process compared with the redundant energy consumption laxity based (RECLB) algorithm.