Agents Based Monitoring of Heterogeneous Cloud Infrastructures

Monitoring of resources is one among the major challenges that the virtualization brings with it within the Cloud environment since the user applications are often distributed on several nodes whose location is unknown a priori and can dynamically change. Consumers need to monitor their resources for checking that service levels are continuously compliant with the agreed SLA and for detecting under-utilization or overloading conditions of their resources. Furthermore the monitoring of service levels becomes critical because of the conflicts of interest that might occur between provider and customer in case of outage. In this paper a framework that supports the monitoring of Cloud infrastructure is presented. It provides to the user the possibility to check the state of his/her resources, even if they have been acquired from heterogeneous vendors. The proposed environment will offer high elasticity and extensibility by the provisioning of an high level of customization of the performance indexes and metrics.