Runtime application performance management for multi-cloud CYCLONE environment

This paper presents results of the ongoing development of CYCLONE as a platform for scientific applications in heterogeneous multi-cloud/multi-provider environment. In particular, we focus on QoS management of the multi-cloud applications within CYCLONE. A challenging factor for application deployment and exploitation within the CYCLONE infrastructure is its highly dynamic nature, which raises the need for control methods that quickly adapt to, or even anticipate, changing circumstances. In this paper we present the solution that allows for performance optimization of the running applications within CYCLONE. This solution is envisioned as an eternal software solution which can be integrated with SlipStream, a multicloud application management platform. Based on the analysis of the measurement data, a number of actions may be taken. These actions may include re-scaling of the cloud resources, redeployment of the application, or choosing of the alternative deployment of the same application. The core of our solution is the analytics engine, and, for a given scenario, we illustrate the some of the engine algorithms.