Francisco Matias Cuenca-Acuna

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We introduce the PlanetP system, which explores the construction of a content addressable publish/subscribe service using gossiping between peers of an unstructured peerto-peer (P2P) community. Unlike many recent P2P systems that have focused on enabling very large-scale name-based object location, PlanetP does not build and maintain a sophisticated(More)
We consider the problem of content search and retrieval in peer-to-peer (P2P) communities. P2P computing is a potentially powerful model for information sharing between ad hoc groups of users because of its low cost of entry and natural model for resource scaling with community size. As P2P communities grow in size, however, locating information distributed(More)
We introduce the PlanetP system, which explores the construction of a reliable peer-to-peer (P2P) content search and retrieval service using randomly circulated global state between peers of an unstructured community. Our work represents a novel alternative approach to recent P2P systems that focus on enabling very largescale name-based object location(More)
We consider the problem of increasing the availability of shared data in peer-to-peer (P2P) systems so that users can access any content, regardless of the current subset of online peers. In particular, we seek to conservatively estimate the amount of excess storage required to achieve a practical availability of 99.9% by studying a decentralized algorithm(More)
We consider the problem of deploying and managing federated services that run on federated systems spanning multiple collaborative organizations. In particular, we present a peer-to-peer framework targeted to the construction of self-managing services that automatically adjust the number of service components and their placements in response to changes in(More)
We consider the use of cooperative caching to manage the memories of cluster-based servers. Over the last several years, a number of researchers have proposed locality-conscious servers that implement content-aware request distribution to address this problem [2, 17, 4, 5, 6]. During this development, it has become conventional wisdom that cooperative(More)
We consider the problem of ensuring high data availability in federated content sharing systems. Ideally, such a system would provide high data availability in a device transparent manner so that users are not faced with the time-consuming and error-prone task of managing data replicas across the constituent devices of the system. We propose a novel unified(More)
Storage technology trends are providing massive storage in extremely small packages while declining computing costs are resulting in a rising number of devices per person. The confluence of these trends are presenting a new, critical challenge to storage and file system designers: how to enable users to effectively manage, use, and share huge amounts of(More)
Social networks offering unprecedented content sharing are rapidly developing over the Internet. Unfortunately, it is often difficult to both locate and manage content in these networks, particularly when they are implemented on current peer-to-peer technologies. In this paper, we describe Wayfinder, a peer-topeer file system that targets the needs of(More)
To date, much of the research in P2P information sharing has concentrated on methods for key-based or contentbased location of shared information. In this paper, we argue that in addition to these techniques, the provision of a global browsable structure is also a critical component since users do not always know the appropriate key or set of keywords to(More)