Bryce Wilcox-O'Hearn. Experiences deploying a large-scale emergent network. In Druschel et al. [9], pages 104--110.  Home/Search   Document Not in Database   Summary   Related Articles   Check

....a real world environment by simply deploying them on an existing P2P network and collecting data on their performance is a daunting task. In some cases, measurements are easier to carry out due to some easily accessible central control entity in the network that manages node joins and departures [14]. Also, some algorithms may be tested by deploying them on one or a few controlled nodes in the network (as in [15] However, for a wide range of P2P related algorithms and protocols, simply deploying and testing them on existing P2P networks is not possible. For example, most algorithms require ....

....define a peer s uptime to be the fraction of an observation period that a peer is participating in the P2P network, i.e. issuing, responding to and forwarding queries. Real world observations. Uptime and session duration of peers have been set in [13] Observations on the MojoNation P2P network [14] have revealed that up to 84 enter the network one time, and for less than one hour. At the moment, we do not consider these peers in our simulations. They probably do not contribute to the shared data much, and they probably do not issue too many queries. Model. We assume a pool of N peers, ....

B. Wilcox-O'Hearn. Experiences deploying a large-scale emergent network. In 1st International Workshop on P2P Systems, 2002.

....and Andrew Twigg Computer Laboratory, Cambridge University, UK E mail: firstname.lastname cl.cam.ac.uk Abstract Many peer to peer networks rely on cooperation between nodes. Reputation and payment protocols are two methods of introducing incentives to participate in systems such as Mojo Nation [10] and Free Haven [3] We are interested in the relationship between reputation and payment protocols, in particular the types and properties of the economies and incentives they induce. Our work reveals some interesting parallels. It turns out that both types of protocol induce similar incentive ....

....2. To interact with C, A must provide a token. 3. Unless A provides service for other nodes it will run out of tokens Figure 2. Payment protocol in the Kademlia [7] DHT routing substrate. As a more complex example, we consider the Free Haven [3] reputation protocol. Mojo Nation [10] was one of the earliest peer topeer systems to use a payment protocol (although it required a centralized trusted third party to resolve double spending issues) As an example of a variable demand payment protocol, we use the model of Crowcroft et al. 2] which provides incentives for nodes to ....

B. Wilcox-O'Hearn. Experiences deploying a large-scale emergent network. In Proc. IPTPS'02. 6

....experienced by sharers and non sharers rather than on the effect of non sharers on the overall system. This difference between sharers and non sharers is key because a performance related incentive system must alter this difference to change the level of sharing in the system. Some systems [3, 5, 11] implement or propose incentive mechanisms. However, as far as we know, there has not been previous work to understand how these systems change the performance difference between sharers and non sharers. 6 Conclusion This paper demonstrates that there is a high potential disincentive for ....

WILCOX-O'HEARN, B. Experiences Deploying A LargeScale Emergent Network. In Electronic Proceedings if the International Workshop on Peer-to-Peer Systems (2002).

....current crop of popular P2P research systems [6, 7] were designed with a large scale static system in mind, and do not perform well under high volatility. Unfortunately, this high volatility is the norm: a study of Mojo Nation found that 80 of the nodes exist in the system for less than one hour [25]. If they are to be deployed on dynamic P2P networks or on batteryconscious sensor networks, new designs need to incorporate the distribution of node join and return from the beginning. The third component of dependability is the distribution of information and requests across the nodes. Adar and ....

....object exists in the system, it (hopefully) returns a pointer to the node storing that object. Although the primary Chord papers [23, 6] do not explicitly discuss node characteristics, it is designed to run on a P2P network, inferring that the nodes exhibit the previously outlined characteristics [20, 18, 1, 25], in particular, that average node lifetime is on the order of one to several hours. As previously mentioned, the objects chosen to query are chosen randomly from those currently existing on live nodes. We modified a Chord simulator to count the number of messages used for search, object ....

B. Wilcox-O'Hearn. Experiences deploying a large-scale emergent network. In Proceedings of the First International Workshop on Peer-to-Peer Systems (IPTPS '02), Cambridge, MA, March 2002.

....In this scheme, a consumer must transfer a token to the supplier prior to a file download. To enable newcomers to use the system, each first time user might be allotted a fixed number of tokens, but once these run out, the user has to serve files to earn tokens. The Mojo Nation system [12] was implemented along these lines. This scheme is similar to a pricing scheme with fixed prices, as a user must decide, for each potential download, whether the file in question is worth a token. The token transfer and validation cost incurred on each file exchange can be high, depending on how ....

Wilcox-O'Hearn, B. Experiences Deploying a Large Scale Emergent Network. in International Workshop on Peer-toPeer Systems (IPTPS'02). 2002. Cambridge, MA.

No context found.

Bryce Wilcox-O'Hearn. Experiences deploying a large-scale emergent network. In Druschel et al. [9], pages 104--110.

No context found.

B. Wilcox-O'Hearn. "Experiences deploying a large-scale emergent network." In Proc. of IPTPS, Cambridge, MA, 2002.

No context found.

Bryce Wilcox-O'Hearn. Experiences Deploying A Large-Scale Emergent Network. In Proceedings of the First International Workshop on Peer-to-Peer Systems (IPTPS '02), 2002.

No context found.

B. Wilcox-O'Hearn. Experiences deploying a large-scale emergent network. In Proceedings of the First International Workshop on Peerto -Peer Systems (IPTPS '02), Cambridge, MA, March 2002.

No context found.

B. Wilcox-O'Hearn. Experiences deploying a large-scale emergent network. In Proceedings of the First International Workshop on Peer-to-Peer Systems (IPTPS '02), Cambridge, MA, March 2002.

No context found.

Bryce Wilcox-O'Hearn. Experiences Deploying a Large-Scale Emergent Network. In Peer-to-Peer Systems: First International Workshop, ITPTS 2002, pages 104{

No context found.

Bryce Wilcox-O'Hearn. Experiences Deploying A Large-Scale Emergent Network. In Proceedings of the First International Workshop on Peer-to-Peer Systems (IPTPS '02), 2002.

No context found.

B. Wilcox-O'Hearn. Experiences deploying a large-scale emergent network. In Proceedings of the First International Workshop on Peer-to-Peer Systems (IPTPS '02), Cambridge, MA, March 2002.

No context found.

Wilcox-O'Hearn, B. Experiences deploying a large-scale emergent network. In Proc. of IPTPS (Mar 2002), pp. 104--110.

No context found.

Wilcox-O'Hearn, B. Experiences deploying a large-scale emergent network. In Proc. of IPTPS (Mar 2002), pp. 104--110.

No context found.

B. Wilcox-O'Hearn. Experiences deploying a large-scale emergent network. In 1st International Workshop on Peer-to-Peer Systems (IPTPS'02), 2002.

No context found.

Bryce Wilcox-O'Hearn. Experiences Deploying a Large-Scale Emergent Network. In Proceedings of the 1st International Workshop on Peer-to-Peer Systems, March 2002.

No context found.

Bryce Wilcox-O'Hearn. Experiences deploying a large-scale emergent network. In Druschel et al. [9], pages 104--110.

No context found.

B. Wilcox-O'Hearn, "Experiences deploying a large-scale emergent network, " in Proc. IPTPS, Cambridge, MA, Mar. 2002, pp. 104--110.

No context found.

B. Wilcox-O'Hearn. Experiences deploying a large-scale emergent network. In Proceedings of the First International Workshop on Peer-to-Peer Systems (IPTPS '02), Cambridge, MA, March 2002.

No context found.

Wilcox-O'Hearn, B. Experiences deploying a large-scale emergent network. In Proceedings of the 1st International Workshop on Peer-to-Peer Systems (IPTPS'02) (Cambridge, MA, USA, 2002), P. Druschel, F. Kaashoek, and A. Rowstron, Eds., Springer-Verlag.

No context found.

B. Wilcox-O'Hearn, "Experiences deploying a large-scale emergent network," in Proceedings of IPTPS, Cambridge, MA, Mar 2002, pp. 104--110.

No context found.

Bryce Wilcox-O'Hearn. Experiences deploying a large-scale emergent network. In Proc. 1st International Workshop on Peer-to-Peer Systems, March 2002.

No context found.

Bryce Wilcox-O'Hearn. Experiences Deploying a Large-Scale Emergent Network. In Peer-to-Peer Systems: First International Workshop, ITPTS 2002, pages 104{

No context found.

B. Wilcox-O'Hearn. Experiences Deploying a Large-Scale Emergent Network. In Proceedings for the 1st International Workshop on Peer-to-Peer Systems (IPTPS '02), March 2002.

First 50 documents

Online articles have much greater impact   More about CiteSeer.IST   Add search form to your site   Submit documents   Feedback  

CiteSeer.IST - Copyright Penn State and NEC