{"id":152130,"date":"2007-11-01T00:00:00","date_gmt":"2007-11-01T00:00:00","guid":{"rendered":"https:\/\/cm-edgetun.pages.dev\/en-us\/research\/msr-research-item\/decentralized-connectivity-preserving-and-cost-effective-structured-overlay-maintenance\/"},"modified":"2018-10-16T20:05:09","modified_gmt":"2018-10-17T03:05:09","slug":"decentralized-connectivity-preserving-and-cost-effective-structured-overlay-maintenance","status":"publish","type":"msr-research-item","link":"https:\/\/cm-edgetun.pages.dev\/en-us\/research\/publication\/decentralized-connectivity-preserving-and-cost-effective-structured-overlay-maintenance\/","title":{"rendered":"Decentralized, Connectivity-Preserving, and Cost-Effective Structured Overlay Maintenance"},"content":{"rendered":"<div class=\"asset-content\">\n<p>In this paper we present a rigorous treatment to structured overlay maintenance in decentralized peer-to-peer (P2P) systems subject to various system and network failures. We present a precise specification that requires the overlay maintenance protocols to be decentralized, preserve overlay connectivity, always converge to the desired structure whenever possible, and only maintain a small local state independent of the size of the system. We then provide a complete protocol with proof showing that it satisfies the specification. The protocol solves a number of subtle issues caused by decentralization and concurrency in the system. Our specification and the protocol overcomes a number of limitations of existing overlay maintenance protocols, such as the reliance on a centralized and continuously available bootstrap system, the assumption of a known system stabilization time, and the need to maintain large local membership lists.<\/p>\n<\/div>\n<p><!-- .asset-content --><\/p>\n","protected":false},"excerpt":{"rendered":"<p>In this paper we present a rigorous treatment to structured overlay maintenance in decentralized peer-to-peer (P2P) systems subject to various system and network failures. We present a precise specification that requires the overlay maintenance protocols to be decentralized, preserve overlay connectivity, always converge to the desired structure whenever possible, and only maintain a small local 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