NDLI: Superset: a non-uniform replica placement strategy towards perfect load balance and fine-grained power proportionality

Content Provider	Springer Nature Link
Author	Luo, Xiangyu Xin, Gang Wang, Yun Zhang, Zexi Wang, Hui
Copyright Year	2015
Abstract	Load balance and power proportionality are both important aspects in constructing high-performance and cost-effective distributed storage systems. However, traditional replica placement strategies which provide load balance usually produce scattered replica layouts, thus disabling power proportionality, while recent strategies that enable power proportionality are typically based on uniform replication, thus compromising the ability of load balance. In this article, we introduce Superset (an organized non-uniform replica placement strategy) which takes both load balance and power proportionality into consideration. The main idea is to partition the whole system into several uniform replication based subsystems with the accommodated file subsets satisfying the ‘superset’ condition. We proved Superset to be theoretically effective, and conducted a series of simulations with real-world distributions of data popularity. Our results show that, compared to state of the art solutions, Superset consumes less energy to fulfill the same performance requirement while offers higher performance subject to the same energy consumption constraint.
Starting Page	1127
Ending Page	1140
Page Count	14
File Format	PDF
ISSN	13867857
Journal	Cluster Computing
Volume Number	18
Issue Number	3
e-ISSN	15737543
Language	English
Publisher	Springer US
Publisher Date	2015-05-27
Publisher Place	New York
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Distributed storage system Replica placement Skewed popularity Load balance Power proportionality Processor Architectures Operating Systems Computer Communication Networks
Content Type	Text
Resource Type	Article
Subject	Computer Networks and Communications Software

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