A single system image server cluster using duplicated MAC and IP addresses

Clusters of PCs are increasingly being used to build high-capacity Web sites. We develop and evaluate a method of building a single system image (SSI) cluster that does not require a central dispatcher. In our clone cluster method, which builds on the existing ONE-IP method, a group of mirrored serv...

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Bibliographic Details
Published inProceedings LCN 2001. 26th Annual IEEE Conference on Local Computer Networks pp. 206 - 214
Main Authors Vaidya, S., Christensen, K.J.
Format Conference Proceeding
LanguageEnglish
Published IEEE 2001
Subjects
Buildings
Cloning
Content management
Delay
Filters
Internet
Load management
Network address translation
Uniform resource locators
Web server
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ISBN0769513212
9780769513218
ISSN0742-1303
DOI10.1109/LCN.2001.990789

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Summary:Clusters of PCs are increasingly being used to build high-capacity Web sites. We develop and evaluate a method of building a single system image (SSI) cluster that does not require a central dispatcher. In our clone cluster method, which builds on the existing ONE-IP method, a group of mirrored server machines with identical MAC and IP addresses are configured on a shared-medium LAN. Each machine filters incoming IP packets based on a hash of IP source addresses. Unlike ONE-IP, our method does not require router configuration changes. We build and evaluate a Linux-based, two-PC cluster that uses an odd/even filter. Simulation results show that the effect of server selection method on mean response time is less significant for heavy-tailed interarrival times than for exponential interarrival times. Simulation results show that response time performance from a Clone Cluster can be very close to that of a centrally dispatched least-loaded cluster.
ISBN:0769513212
9780769513218
ISSN:0742-1303
DOI:10.1109/LCN.2001.990789