Scalable QoS Content-Aware Load Balancing Algorithm for a Web Switch Based on Classical Policies

This paper presents a load balancing solution for a cluster of Web servers that considers QoS in order to differentiate the service provided to the clients when the Web system is receiving a high volume of traffic. Adaptability is a needed feature to suit the balancing parameters to the fluctuations...

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Vydané v:22nd International Conference on Advanced Information Networking and Applications (aina 2008) s. 934 - 941
Hlavní autori: Gilly, K., Thomas, N., Juiz, C., Puigjaner, R.
Médium: Konferenčný príspevok..
Jazyk:English
Vydavateľské údaje: IEEE 01.03.2008
Predmet:
admission control
Clustering algorithms
Content-aware Web systems
Dispatching
Fluctuations
Internet
Load management
Monitoring
QoS
Quality of service
Routing
Switches
Web performance
Web server
ISBN:9780769530956, 0769530958
ISSN:1550-445X
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Shrnutí:This paper presents a load balancing solution for a cluster of Web servers that considers QoS in order to differentiate the service provided to the clients when the Web system is receiving a high volume of traffic. Adaptability is a needed feature to suit the balancing parameters to the fluctuations of the Web traffic. We monitor the incoming workload to the system and tune the parameters more frequently when the bursty arrivals trend increases. Throughput prediction enables to estimate the maximum utilization allowed in the servers for each service, and then to set a maximum number of accepted requests to set a limit in the utilization of the servers and to avoid a possible congestion situation, while guaranteeing the QoS. Classical dispatching policies are introduced and compared to analyse the behaviour of the algorithm. HTTP static and dynamic requests are considered in the workload.
ISBN:9780769530956
0769530958
ISSN:1550-445X
DOI:10.1109/AINA.2008.75