Publication: A Highly Available Cluster of Web Servers with Increased Storage Capacity
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2006-09
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Universidad de Castilla-La Mancha
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Abstract
Web servers scalability has been traditionally solved by improving software elements or increasing hardware resources of the server machine.
Another approach has been the usage of distributed
architectures. In such architectures, usually, file al-
location strategy has been either full replication or full distribution. In previous works we have showed that partial replication offers a good balance between storage capacity and reliability. It offers much higher
storage capacity while reliability may be kept at an equivalent level of that from fully replicated solutions.
In this paper we present the architectural details of Web cluster solutions adapted to partial replication.
We also show that partial replication does not imply a penalty in performance over classical fully replicated architectures. For evaluation purposes we have used a simulation model under the OMNeT++ framework and we use mean service time as a performance comparison metric.
Description
Ponencias de las Decimoséptimas Jornadas de Paralelismo de la Universidad de Castilla-La Mancha celebradas el 18,19 y 20 de septiembre de 2006 en Albacete
Keywords
Web Cluster, Web Switch, Content replication, Partial replication
Bibliographic citation
XVII Jornadas de Paralelismo, Albacete: Universidad de Castilla la Mancha 2006. p. 109-114