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Patent

Load balancing web service by rejecting connections

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TLDR
In this paper, a load balancer allocates requests to a pool of web servers configured to have low queue capacities, and each web server self-monitors its rejection rate, and if the rejection rate exceeds a threshold, the number of processes concurrently running on the web server is increased.
Abstract
A load balancer allocates requests to a pool of web servers configured to have low queue capacities. If the queue capacity of a web server is reached, the web server responds to an additional request with a rejection notification to the load balancer, which enables the load balancer to quickly send the rejected request to another web server. Each web server self-monitors its rejection rate. If the rejection rate exceeds a threshold, the number of processes concurrently running on the web server is increased. If the rejection rate falls below a threshold, the number of processes concurrently running on the web server is decreased.

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References
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Proceedings ArticleDOI

Dynamic Scaling of Web Applications in a Virtualized Cloud Computing Environment

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