![]() ![]() ![]() This gives the PlanetLab community an incentive to work together to make best use of its shared resources. Each PlanetLab node should gracefully degrade in performance as the number of users grows. PlanetLab must manage a complex relationship between node owners and users. PlanetLab ad- ministers nodes owned by hundreds of organiza- tions, which agree to allow a worldwide community of researchersmost complete strangersto access their machines. To deliver this utility, PlanetLab innovates along two main dimensions: Novel management architecture. It supports the design and evalua- tion of dozens of long-running services that transport an aggregate of 3-4TB of data every day, satisfying tens of millions of requests involving roughly one million unique clients and servers. It has been used to evaluate a diverse set of planetary-scale network services, including content dis- tribution, anycast, DHTs, robust DNS, large-file distribution, measurement and analysis, anomaly and fault diagnosis, and event notification. It currently hosts 2500 researchers affiliated with 600 projects. It was launched in mid- 2002 with 100 machines distributed to 40 sites, but to- day includes 700 nodes spanning 336 sites and 35 coun- tries. In many ways, it has been an unexpected success. 1 Introduction PlanetLab is a global platform for deploying and eval- uating network services. Due in large part to the nature of the PlanetLab experiment, the discus- sion focuses on synthesis rather than new techniques, bal- ancing system-wide considerations rather than improving performance along a single dimension, and learning from feedback from a live system rather than controlled exper- iments using synthetic workloads. It identifies the re- quirements that shaped PlanetLab, explains the design decisions that resulted from resolving conflicts among these requirements, and reports our experience imple- menting and supporting the system. This paper reports our experiences building PlanetLab over the last four years. Fiuczynski, Steve Muir Department of Computer Science Princeton University Abstract. planetlab.pdf Experiences Building PlanetLab Larry Peterson, Andy Bavier, Marc E. FebruProblem statement: what kind of problem is presented by the authors and why this problem is important? Approach & Design: briefly describe the approach designed by the authors computer science 0 Problem statement: what kind of problem is presented by the authors and why this problem is important? Approach & Design: briefly describe the approach designed by the authors Strengths and Weaknesses: list the strengths and weaknesses, in your opinion Evaluation: how did the authors evaluate the performance of the proposed scheme? What kind of workload was designed and used? Conclusion: by your own judgement. ![]()
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