OSGi in the cloud - quo vadis?

• cloud computing is a form of outsourcing
• problem: dependability
• <example of cloud down time>
• distribution adds complexity and its own failure models
• modularity in OSGi
• package dependency = tight coupling
• services = loose coupling
• problem: parrots are inherently unreliable
• Remote Service Admin: Mechanism
• expose this local service
• import the remote service
• Topology Manager: Magic

(Eucalyptus cloud)

Goal: when the service you are supplying goes down,  be able to swap to an alternative service with as little service interruption as possible