NDLI: Design and optimization for distributed indexing scheme in switch-centric cloud storage system

Content Provider	IEEE Xplore Digital Library
Author	Liu, Yuang Gao, Xiaofeng Chen, Guihai
Copyright Year	2015
Description	Author affiliation: Shanghai Key Laboratory of Scalable Computing and Systems, Department of Computer Science and Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China (Liu, Yuang; Gao, Xiaofeng; Chen, Guihai)
Abstract	The capacity of data management and the query performance are two main metrics for today's cloud storage system. In this paper, we design a two-layer indexing scheme of distributed secondary index on switch-centric data center network (DCN) topologies. We take advantage of the desirable features of switch-centric topologies, such as stability, scalability, and fault tolerance, and successfully improve the query efficiency for cloud storage system. We choose B+-tree as the local layer index to locate data in each local host, while implement segment tree as the global layer index to manage a portion of metadata published from local hosts. We also optimize the query processing protocols to reduce false positives and network cost. In addition, we propose a top-down index selection method for maintenance. We then analyze the efficiency of query processing theoretically and calculate the expected number of routing cost for each query precisely. Finally we validate the efficiency of our design by experiments and comparison with a previous work.
Starting Page	582
Ending Page	587
File Size	310823
Page Count	6
File Format	PDF
e-ISBN	9781467371940
DOI	10.1109/ISCC.2015.7405577
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2015-07-06
Publisher Place	Cyprus
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Topology Switches Indexing Network topology Distributed databases Query processing Data Center Network Cloud System
Content Type	Text
Resource Type	Article

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