CAREER: Ensuring Sustainable Scalability for Globally-Distributed Systems

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The past few years have witnessed a growing number of large-scalenetworked systems. Most of these systems are built following anoverlay approach, with each of them regularly and independentlyprobing its environment to guide path selection algorithms, routearound faulty links and replicate content for availability. As thesesystems grow in popularity, such an approach will result in anunsustainable degree of monitoring and restrict the variety, numberand span of distributed services.The thesis of this project is that a large fraction ofglobally-distributed systems can be built to ensure sustainablescalability by strategically reusing the view of the network gatheredby long-running, ubiquitous services such as CDNs and P2Psystems. This work defines and explores "3R" - a new approach to thedesign and implementation of distributed systems that focuses onminimizing aggregated control and administrative overhead bystrategically reusing environment's views and recycling previouslygathered measurements. In particular, we are designing efficienttechniques for maintaining, accessing and reusing this information forbuilding next-generation streaming multicast, content distribution anddata sharing applications.The work explores the tradeoffs in the recycling/reuse ofenvironmental measurements, and their implication indistributed-system design. Ultimately, it will facilitate deploymentsof wide-area applications, benefiting society at large. The researchagenda is complemented by a thorough education and outreach plan forstrengthening experimental systems education and contributing tominority recruitment and retention.