Adapting applications to exploit virtualization management knowledge

Today´s applications do not react to the ad-hoc, dynamic changes in locality, performance and environment that are characteristic of virtualized infrastructure. We illustrate exemplary effects experienced by distributed programs in reaction to change in the infrastructure and explore call interception, library replacement and aspect-oriented programming as alternatives for remedy. We demonstrate the remedial effect of adaptive code introduced without change to the original application code, or its bindings. We sketch a software architecture to make available management knowledge as a base for adaptation.