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V. Emeakaroha, T. Ferreto, M. Netto, I. Brandic, C. De Rose:
"CASViD: Application Level Monitoring for SLA Violation Detection in Clouds";
Talk: 36th Annual IEEE International Computer Software and Applications Conference, COMPSAC 2012, Izmir, Turkey; 07-16-2012 - 07-20-2012; in: "Proceedings of the 36th Annual IEEE International Computer Software and Applications Conference, COMPSAC 2012 Volume I: Main Conference", IEEE Computer Society, (2012), ISBN: 978-0-7695-4736-7; 499 - 508.

Cloud resources and services are offered based on Service Level Agreements (SLAs) that state usage terms and penalties in case of violations. Although, there is a large body of work in the area of SLA provisioning and monitoring at infrastructure and platform layers, SLAs are usually assumed to be guaranteed at the application layer. However, application monitoring is a challenging task due to monitored metrics of the platform or infrastructure layer that cannot be easily mapped to the required metrics at the application layer. Sophisticated SLA monitoring among those layers to avoid costly SLA penalties and maximize the provider profit is still an open research
challenge. This paper proposes an application monitoring architecture
named CASViD, which stands for Cloud Application SLA Violation Detection architecture. CASViD architecture monitors and detects SLA violations at the application layer, and includes tools for resource allocation, scheduling, and deployment. Different from most of the existing monitoring architectures, CASViD focuses on application level monitoring, which is relevant when multiple customers share the same resources in a Cloud environment. We evaluate our architecture in a real Cloud testbed using applications that exhibit heterogeneous behaviors in order to investigate the effective measurement intervals for efficient monitoring of different application types. The achieved
results show that our architecture, with low intrusion level, is
able to monitor, detect SLA violations, and suggest effective
measurement intervals for various workloads.

http://dx.doi.org/10.1109/COMPSAC.2012.68

Project Head Ivona Brandic:
Foundations of Self-governing ICT Infrastructures