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A Simulation Approach for Evaluating Scalability of a Virtually Fully Replicated Real-time Database
University of Skövde, School of Humanities and Informatics.
2006 (English)Report (Other academic)
Abstract [en]

We use a simulation approach to evaluate large scale resource usage in a distributed real-time database. Scalability is often limited by that resource usage is higher than what is added to the system when a system is scaled up. Our approach of Virtual Full Replication (VFR) makes resource usage scalable, which allows large scale real-time databases. In this paper we simulate a large scale distributed real-time database with VFR, and we compare it to a fully replicated database (FR) for a selected set of system parameters used as independent variables. Both VFR and FR support local timeliness of transactions by ensuring local availability for data objects accessed by transactions. The difference is that VFR has a scalable resource usage due to lower bandwidth usage for data update replication. The simulation shows that a simulator has several advantages for studying large scale distributed real-time databases and for studying scalability in resource usage in such systems.

Place, publisher, year, edition, pages
Skövde: Institutionen för kommunikation och information , 2006.
Series
IKI Technical Reports, HS- IKI -TR-06-002
National Category
Information Science
Identifiers
URN: urn:nbn:se:his:diva-1272OAI: oai:DiVA.org:his-1272DiVA: diva2:2409
Available from: 2008-06-17 Created: 2008-06-17 Last updated: 2010-03-26

Open Access in DiVA

fulltext(192 kB)284 downloads
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Mathiason, Gunnar
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CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf