Minimizing metadata size for file synchronization using variable-length chunking

Ho Min Jung, Jae Min Park, Chang Geun Song, Sun Jeong Kim, Se Hak Chun, Young Woong Ko

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

A file synchronization program has to exchange lots of metadata information between a client and a server. As data have been growing rapidly in file synchronization systems, the metadata exchanging overhead is more critical now than before. In this paper, we propose a practical approach for minimizing metadata exchange overhead on the file synchronization system using variable-length chunking. The key idea is to minimize metadata by adapting file similarity information and generating only one hash key for several metadata. In the experiment, traditional file synchronization program sends 4.3 Mbyte over 500 MByte data file. However, the proposed algorithm only sends 37 Kbyte metadata.

Original languageEnglish
Title of host publicationFuture Information Technology, Application, and Service, FutureTech 2012
Pages349-357
Number of pages9
EditionVOL. 1
DOIs
StatePublished - 2012
Event7th FTRA International Conference on Future Information Technology, FutureTech 2012 - Vancouver, BC, Canada
Duration: 26 Jun 201228 Jun 2012

Publication series

NameLecture Notes in Electrical Engineering
NumberVOL. 1
Volume164 LNEE
ISSN (Print)1876-1100
ISSN (Electronic)1876-1119

Conference

Conference7th FTRA International Conference on Future Information Technology, FutureTech 2012
Country/TerritoryCanada
CityVancouver, BC
Period26/06/1228/06/12

Keywords

  • Deduplication
  • File synchronization
  • Metadata
  • Variable-length chunking

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