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Article: HTSC and FH_HTSC: XOR-based codes to reduce access latency in distributed storage systems

TitleHTSC and FH_HTSC: XOR-based codes to reduce access latency in distributed storage systems
Authors
Issue Date2015
PublisherInstitute of Electrical and Electronics Engineers. The Journal's web site is located at http://ieeexplore.ieee.org/xpl/RecentIssue.jsp?punumber=5449605
Citation
Journal of Communications and Networks, 2015, v. 17 n. 6, p. 582-591 How to Cite?
AbstractA massive distributed storage system is the foundation for big data operations. Access latency performance is a key metric in distributed storage systems since it greatly impacts user experience while existing codes mainly focus on improving performance such as storage overhead and repair cost. By generating parity nodes from parity nodes, in this paper we design new XOR-based erasure codes hierarchical tree structure code (HTSC) and high failure tolerant HTSC (FH_HTSC) to reduce access latency in distributed storage systems. By comparing with other popular and representative codes, we show that, under the same repair cost, HTSC and FH.HTSC codes can reduce access latency while maintaining favorable performance in other metrics. In particular, under the same repair cost, FH.HTSC can achieve lower access latency, higher or equal failure tolerance and lower computation cost compared with the representative codes while enjoying similar storage overhead. Accordingly, FH.HTSC is a superior choice for applications requiring low access latency and outstanding failure tolerance capability at the same time.
Persistent Identifierhttp://hdl.handle.net/10722/231943
ISSN
2015 Impact Factor: 0.92
2015 SCImago Journal Rankings: 0.608

 

DC FieldValueLanguage
dc.contributor.authorShuai, Q-
dc.contributor.authorLi, VOK-
dc.date.accessioned2016-09-20T05:26:32Z-
dc.date.available2016-09-20T05:26:32Z-
dc.date.issued2015-
dc.identifier.citationJournal of Communications and Networks, 2015, v. 17 n. 6, p. 582-591-
dc.identifier.issn1229-2370-
dc.identifier.urihttp://hdl.handle.net/10722/231943-
dc.description.abstractA massive distributed storage system is the foundation for big data operations. Access latency performance is a key metric in distributed storage systems since it greatly impacts user experience while existing codes mainly focus on improving performance such as storage overhead and repair cost. By generating parity nodes from parity nodes, in this paper we design new XOR-based erasure codes hierarchical tree structure code (HTSC) and high failure tolerant HTSC (FH_HTSC) to reduce access latency in distributed storage systems. By comparing with other popular and representative codes, we show that, under the same repair cost, HTSC and FH.HTSC codes can reduce access latency while maintaining favorable performance in other metrics. In particular, under the same repair cost, FH.HTSC can achieve lower access latency, higher or equal failure tolerance and lower computation cost compared with the representative codes while enjoying similar storage overhead. Accordingly, FH.HTSC is a superior choice for applications requiring low access latency and outstanding failure tolerance capability at the same time.-
dc.languageeng-
dc.publisherInstitute of Electrical and Electronics Engineers. The Journal's web site is located at http://ieeexplore.ieee.org/xpl/RecentIssue.jsp?punumber=5449605-
dc.relation.ispartofJournal of Communications and Networks-
dc.rightsJournal of Communications and Networks. Copyright © Institute of Electrical and Electronics Engineers.-
dc.rights©2015 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.-
dc.rightsCreative Commons: Attribution 3.0 Hong Kong License-
dc.titleHTSC and FH_HTSC: XOR-based codes to reduce access latency in distributed storage systems-
dc.typeArticle-
dc.identifier.emailLi, VOK: vli@eee.hku.hk-
dc.identifier.authorityLi, VOK=rp00150-
dc.description.naturepostprint-
dc.identifier.doi10.1109/JCN.2015.000105-
dc.identifier.hkuros265051-
dc.identifier.volume17-
dc.identifier.issue6-
dc.identifier.spage582-
dc.identifier.epage591-
dc.publisher.placeUnited States-

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