Clement Research Statement

نویسنده

  • Allen Clement
چکیده

Computer systems are a pervasive aspect of daily life. From the smart phones we use to access our favorite websites, to the services those websites provide, to the computer systems that manage core infrastructure services (e.g., air traffic control, the power grid, or the stock market), there are very few aspects of a normal day not mediated by computer systems. Two byproducts of this integration are increased frustration when these systems don’t work properly and corresponding appreciation for the value of dependable systems. The goal of my research is to build robust distributed systems that simply work despite the best, and worst, efforts of the environment. Building robust systems is challenging for multiple reasons. On the one hand, the definition of “works” is system dependent and frequently invokes a tension between performance and some notion of correct behavior. On the other hand, there are many environmental factors that can get in the way: crashed components, corrupted hardware, transient electromagnetic interference, delayed and corrupted messages, misconfigured servers, malicious attackers, disaffected sysadmins, selfish users, benign concurrency, changes in workload, . . . . My approach is based on a synergy between system building and theoretical work. To be confident that my systems work as advertised, I base my design and implementation efforts on solid theoretical foundations. To ensure that my theoretical foundations are relevant, I leverage the system building experience to develop new theoretical models and correctness conditions that better match the system deployment requirements. I have applied this methodology to a variety of applications in domains ranging from peer-topeer backup to live video streaming to scalable cluster file systems. In the process I have developed new fault models and built systems that are both more practical and more robust than previously thought possible. In the following I briefly overview of my previous work and future plans.1

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تاریخ انتشار 2013