NDLI: SCAN-Lite: enterprise-wide analysis on the cheap

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SCAN-Lite: enterprise-wide analysis on the cheap

Content Provider	ACM Digital Library
Author	Soules, Craig A.N. Keeton, Kimberly Morrey, Charles B.
Abstract	Background data analysis due to virus scanning, backup, and desktop search is increasingly prevalent on client systems. As the number of tools and their resource requirements grow, their impact on foreground workloads can be prohibitive. This creates a tension between users' foreground work and the background work that makes information management possible. We present a system called SCAN-Lite that addresses this tension. SCAN-Lite exploits the fact that data in an enterprise is often replicated to efficiently schedule background data analyses. It uses content hashing to identify duplicate content, and scans each unique piece of content only once. It delays scheduling these scans to increase the likelihood that the content will be replicated on multiple machines, thus providing more choices for where to perform the scan. Furthermore, it prioritizes machines to maximize use of idle time and minimize the impact on foreground activities. We evaluate SCAN-Lite using measurements of enterprise replication behavior. We find that SCAN-Lite significantly improves scanning performance over the naive approach, and that it effectively exploits replication to reduce total work done and the impact on client foreground activity.
Starting Page	117
Ending Page	130
Page Count	14
File Format	PDF
ISBN	9781605584829
DOI	10.1145/1519065.1519079
Language	English
Publisher	Association for Computing Machinery (ACM)
Publisher Date	2009-04-01
Publisher Place	New York
Access Restriction	Subscribed
Subject Keyword	Distributed processing Two-phase scanning Analysis Content hashing Scheduling
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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