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Non-Transitive Connectivity and DHTs. Mike Freedman. Karthik Lakshminarayanan. Sean Rhea. Ion Stoica. WORLDS 2005. X. Distributed Hash Tables... System assigns ...
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Instead, implement a new DHT called Bamboo. Same overlay structure as Pastry ... Been running Bamboo / OpenDHT on PlanetLab since April 2004. Constantly run a ...
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Always a tradeoff between possible location of files and searching difficulty. Peer-to-peer allow files ... Tapestry (UCB) -- Symphony (Stanford) -- 1hop (MIT) ...
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Bigger, better, faster web crawler. Enables new search and indexing technologies. P2P Web Search ... WebCrawler over PIER, Bamboo DHT, up to 80 PlanetLab nodes ...
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Load Balancing in Structured P2P Systems (DHTs) Sonesh Surana sonesh@cs.berkeley.edu [Brighten Godfrey, Karthik Lakshminarayanan, Ananth Rao, Ion Stoica, Richard Karp]
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Virtual Ring Routing. Network Routing Inspired by DHTs. Matt Caesar, Miguel Castro, Ed Nightingale, ... DHT-like structure to translate ids to addresses ...
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Management: Quotas/Updates/Deletes. DHash Design: Block vs. File ? ... Deletes. No explicit delete: data stored for an agreed interval and discarded unless ...
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Index identifier = (Hash(p1)) query q = (?s, p1, ?o) Responsible node for p1 ... (painter, rdfs:subClassOf,artist) (flemish, rdfs:subClassOf, painter) ...
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Peer to Peer DHTs. DHT=Distributed Hash Table. Offers 2 basic calls ... (orinally from a 3000 node deployment) to 500 nodes on a 1275 trans-stub topology ...
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Examine benefits of replica placement combined with other route diversification techniques ... Equally-Spaced Placement for Chord ...
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Content Distribution Networks (CDNs) Mike Freedman ... (DHTs), and overlay networks Network case studies Enterprise, wireless, cellular, datacenter, ...
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Content delivery: CDNs, P2P file sharing, DHTs. Enterprise systems: MS Exchange ... Multi-query sharing: Common 'subexpression' elimination ...
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Distributed Hash Tables David Tam Patrick Pang Presentation Outline What is DHT (Distributed Hash Table)? Why DHTs? Applications How lookup works?
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Scalable management of XML data in P2P networks based on distributed hash tables (DHTs) ... Diagnosis and diagnosability. Organization of the international SAT ...
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E.g., Napster, Gnutella, KaZaA. File sharing is the dominant P2P app. Mass-market ... ray-of-light.mp3' Distributed Hash Tables (DHTs) Structured solution ...
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Distributed Hash Tables David Tam Patrick Pang Presentation Outline What is DHT (Distributed Hash Table)? Why DHTs? Applications How lookup works?
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On Designing and Thwarting Worms using Co-ordination. Jayanthkumar Kannan ... Some worms caused congestion in the backbone ... and faster worms using DHTs. ...
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Beehive: Achieving O(1) Lookup Performance in P2P Overlays for Zipf-like Query Distributions ... overview of beehive. general replication framework for structured DHTs ...
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Beehive is a proactive replication framework that enables prefix-matching DHTs ... Beehive minimize bandwidth by posing the following optimising problem ...
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We present a lookup method that does the routing without DHTs. It has the same favorable properties and performance as Chord but allows more ...
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GIA: Making Gnutella-like P2P Systems Scalable. Yatin Chawathe. Intel Research Seattle ... DHTs may be overkill. Incremental changes to deployed systems ...
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Scalable, efficient routing, load balance, etc. State-of-the-art: DHTs ... Efficient in the face of skewed node ranges. Explicit load balancing. Multiple attributes ...
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Extend DHTs with content-based search. Full-text search, music/image retrieval. Build large-scale search engines using P2P technology. 3. Focus and Approach in pSearch ...
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DHTs are good at balancing load. However, resources are usually NOT equally ... Add incoming node anyways. Kick out one child. Pick the farthest child from me ...
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The design, prototype implementation and evaluation of the. following services on top of DHTs: ... concert. Deterministic query placement. depends on query components ...
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PIER A P2P Relational Query Processor over DHTs ... Output of one operator tree is placed in a storage mechanism (DHT) and is the ...
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Providing high quality training opportunities to develop visionary leaders within all ... undertake R&D projects during this time. DHT's lead. Organised deputy swaps within the ...
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6 papers at various publication stages (submitted, under ... Graph coloring work (SP4 : Aston) Network storage of file parts (SP4: Aston) Input from SP3 ...
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calculate the message insertion rates per peer for a ... Calculation of p. assume that searched ids are uniformly randomly distributed ... Rate Calculation(con. ...
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Simultaneous use of riser, riserless, and mission-specific platforms ... 3 Platforms (MSP, Riser, Riserless) Central Management Office-IMI ...
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Joint work with: Brighten Godfrey, Brad Karp, John Kubiatowicz, ... CFS, HiveCache, PAST, Pastiche. OceanStore / Pond. Content Distribution Networks / Web Caches ...
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Modified the LimeWire Gnutella Client. Run as leaf or ultrapeer. Monitor Gnutella traffic ... Log of Gnutella queries from LimeWire clients. Reissued Gnutella queries ...
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Title: Systems Area: OS and Networking Author: Campus User Last modified by: Ion Stoica Created Date: 2/16/1997 2:02:43 PM Document presentation format
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A performance vs. cost framework for evaluating DHT design tradeoffs under churn ... Coral, OpenDHT, UsenetDHT, ePost, OceanStore, CoDNS, Overnet ...
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NeXtworking'03 June 23-25,2003, Chania, Crete, Greece ... Issues in P2P Systems and Content Distribution. With contributions from ... Morpheus, OpenCola, or BitTorrent ...
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Vanish: Increasing Data Privacy with SelfDestructing Data
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Building a Reliable Mutable File System on Peer ... No cache consistency issues. ... immutability of DHT (no public-key crypto or cache consistency problems) ...
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Distributed systems are designed to be scalable, available and robust ... Layering allows inheriting of robustness, availability and scalable routing from ...
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Querying the Internet with PIER (PIER = Peer-to-peer Information Exchange and Retrieval)
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object size, update frequency, or number of replicas (si = 1) ... Beehive: lookup performance ... reverse popularity injected. Beehive: zipf parameter change ...
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Distributed Hash Tables. David Tam. Patrick Pang. Presentation Outline ... Sybil attack [Kaashoek] Solution 1: public key solution. Security Inconsistent Behaviour ...
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The Design and Implementation of a Robust, Cost-Conscious Peer-to-Peer Lookup Service ... A message destined for a key k is forwarded to the routing table entry ...
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Lots of P2P applications around us. File sharing, file storage, Real time ... Path outage probability of internet. Path outage duration and inter-duration ...
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Title: Performance Author: John Chuang Last modified by: John Chuang Created Date: 7/15/1999 10:10:00 PM Document presentation format: On-screen Show
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Protocol delivers data from one host to another. unicast: conceptually trivial ... PIER (talk later today in session A9!): joins, aggregation, recursive and ...
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This file was generated using MS PowerPoint 2004 for Mac. ... Loo, Robert Morris, Sriram Ramabhadran, Sean Rhea, Ion Stoica, David Wetherall ...
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SDIMS: A Scalable Distributed Information Management System Praveen Yalagandula Mike Dahlin Laboratory for Advanced Systems Research (LASR) University of Texas at Austin
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Title: CS2104 Lecture1 Author: Seif Haridi Last modified by: Peter Van Roy Created Date: 8/25/2002 11:24:20 AM Document presentation format: On-screen Show
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Peer-to-Peer Networks. Distributed Algorithms for P2P. Distributed ... Censor-resistant stores [Eternity, FreeNet, ...] Application-layer multicast [Narada, ...
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DHT systems: Content Addressable Network (CAN), Chord, Pastry, etc. ... Store the key, value pair at the node which owns the zone within which the point P is located ...
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Research issues in state-the-art P2P systems. DKS ... Smartly. 2003-11-14. S. Haridi, Peer to Peer Systems. 12. The Principle Of Distributed Hash Tables ...
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... Kademlia, Skipnet, Symphony, Koorde, Apocrypha, Land, ... Chord, Symphony = Ring. many algorithms can have same geometry. Why is Geometry important? ...
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PIER has one primary module. Add-ons can make it look more database like. 8 ... (Compute) Run standard one-site join algorithm on the tuples as they arrive ...
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Each axis represents hash space for one of triple's elements (subject, predicate, and object) ... Key : Each of subject, predicate and object. Value : Triple ...
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Title: Performance and Power of Cache-Based Reconfigurable Computing Author: Jet Propulsion Laboratory Last modified by: Jet Propulsion Laboratory
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