On estimating actuation delays in elastic computing systems

Alessio Gambi, Daniel Moldovan, Georgiana Copil, Hong Linh Truong, Schahram Dustdar

Publikation: Beitrag in Buch/Bericht/KonferenzbandKonferenzbeitragBegutachtung


Elastic controllers autonomically adjust the allocation of resources in cloud computing systems. Usually such controllers assume that control actions will take immediate effect. In clouds, however, actuation times may be long, and the controllers can hardly guarantee acceptable levels of service if they neglect these actuation delays. Therefore, the ability to correctly estimate the time that control actions take effect on the systems is crucial. However, detecting actuation delays in elastic computing systems is challenging because cloud systems provide only inaccurate and incomplete data about reconfigurations timing. In this paper, we tackle the problem of estimating the delay of control actions in elastic systems. We identify recurring types of changes in the monitored metrics and requirements to properly carry out the estimation. Based on that, we develop a novel framework for the actuation delays estimation that utilizes change point detection techniques. We conduct several experiments with real-world systems to illustrate the feasibility and applicability of our framework.

Titel2013 8th International Symposium on Software Engineering for Adaptive and Self-Managing Systems, SEAMS 2013 - Proceedings
Redakteure/-innenMarin Litoiu, John Mylopoulos
Herausgeber (Verlag)IEEE Computer Society
ISBN (Print)9781467344012
PublikationsstatusVeröffentlicht - 21 Mai 2013
Extern publiziertJa


NameICSE Workshop on Software Engineering for Adaptive and Self-Managing Systems
ISSN (Print)2157-2305
ISSN (elektronisch)2156-7891


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