Load Balancing Evaluation Tools for a Private Cloud: A Comparative Study

Saeid, Sahand and Ali Yahiya, Tara (2018) Load Balancing Evaluation Tools for a Private Cloud: A Comparative Study. ARO-The Scientific Journal of Koya University, 6 (2). pp. 13-19. ISSN 24109355

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Official URL: http://dx.doi.org/10.14500/aro.10438

Abstract

Cloud computing turns out to be an emerging technology that revolutionized the world of IT infrastructure. However, since the number of users is increasing daily, the demand for cloud services is increasing too. Thus, congestion occurs on the servers that provide services in the cloud. To avoid congestion, we used load balancer tools such as HAProxy and Nginx to intercept the requests of users and distribute them evenly to the servers. Jmeter is used to measure the performance metrics of least connection algorithm in terms of CPU utilization, response time, and concurrency level. Results showed high performance of HAProxy compared to Nginx in terms of response time and treating requests. Furthermore, we examined the characteristic of availability of the load balancer through deploying redundant load balancers, and we studied the effect of the failure of the load balancer on the quality of service of the end users. Keepalived is used to ensure a smooth transition between the two load balancers. According to the concurrency level, results proved that the number of unsuccessful requests during the failure of the master load balancer is proportionally minuscule compared to the total number of requests sent in a normal situation.

Item Type: Article
Uncontrolled Keywords: Cloud Computing, Load Balancing, Least Connection Algorithm
Subjects: Q Science > QA Mathematics > QA75 Electronic computers. Computer science
Divisions: Aro-The Scientific Journal of Koya University > VOL 6, NO 2 (2018)
Depositing User: Dr Salah Ismaeel Yahya
Date Deposited: 22 Oct 2018 09:09
Last Modified: 22 Oct 2018 09:10
URI: http://eprints.koyauniversity.org/id/eprint/175

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