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Control-theoretical load-balancing for cloud applications with brownout
Umeå universitet, Teknisk-naturvetenskapliga fakulteten, Institutionen för datavetenskap.
Vise andre og tillknytning
2014 (engelsk)Inngår i: 2014 IEEE 53RD ANNUAL CONFERENCE ON DECISION AND CONTROL (CDC), 2014, s. 5320-5327Konferansepaper, Publicerat paper (Fagfellevurdert)
Abstract [en]

Cloud applications are often subject to unexpected events like flash crowds and hardware failures. Without a predictable behaviour, users may abandon an unresponsive application. This problem has been partially solved on two separate fronts: first, by adding a self-adaptive feature called brownout inside cloud applications to bound response times by modulating user experience, and, second, by introducing replicas - copies of the applications having the same functionalities - for redundancy and adding a load-balancer to direct incoming traffic. However, existing load-balancing strategies interfere with brownout self-adaptivity. Load-balancers are often based on response times, that are already controlled by the self-adaptive features of the application, hence they are not a good indicator of how well a replica is performing. In this paper, we present novel load-balancing strategies, specifically designed to support brownout applications. They base their decision not on response time, but on user experience degradation. We implemented our strategies in a self-adaptive application simulator, together with some state-of-the-art solutions. Results obtained in multiple scenarios show that the proposed strategies bring significant improvements when compared to the state-of-the-art ones.

sted, utgiver, år, opplag, sider
2014. s. 5320-5327
HSV kategori
Identifikatorer
URN: urn:nbn:se:umu:diva-129842DOI: 10.1109/CDC.2014.7040221ISI: 000370073805079ISBN: 978-1-4673-6090-6 (tryckt)OAI: oai:DiVA.org:umu-129842DiVA, id: diva2:1065652
Konferanse
IEEE 53rd Annual Conference on Decision and Control (CDC), DEC 15-17, 2014, Los Angeles, CA
Tilgjengelig fra: 2017-01-16 Laget: 2017-01-09 Sist oppdatert: 2018-06-09bibliografisk kontrollert

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