NDLI: Analyzing Long-Term Access Locality to Find Ways to Improve Distributed Storage Systems

Content Provider	IEEE Xplore Digital Library
Author	Miranda, A. Cortes, T.
Copyright Year	2012
Abstract	An efficient design for a distributed file system originates from a deep understanding of common access patterns and user behavior which is obtained through a deep analysis of traces and snapshots. In this paper we analyze traces for eight distributed file systems that represent a mix of workloads taken from educational, research and commercial environments. We focused on characterizing block access patterns, amount of block sharing and working set size over long periods of time, and we tried to find common behaviors for all workloads that can be generalized to other storage systems. We found that most environments shared large amounts of blocks over time, and that block sharing was significantly affected by repetitive human behavior. We also found that block lifetimes tended to be short, but there were significant amounts of blocks with long lifetimes that were accessed over many consecutive days. Lastly, we determined that most daily accesses were made to a reduced set of blocks. We strongly believe that these findings can be used to improve long-term caching policies as well as data placement algorithms, thus increasing the performance of distributed storage systems.
Starting Page	544
Ending Page	553
File Size	354253
Page Count	10
File Format	PDF
ISBN	9781467302265
ISSN	10666192
DOI	10.1109/PDP.2012.15
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-02-15
Publisher Place	Germany
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Servers Satellite broadcasting Distributed databases Animation Aggregates Humans Rendering (computer graphics)
Content Type	Text
Resource Type	Article

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
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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
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