the design and evaluation of a self-organizing superpeer

8/2/2019 The Design and Evaluation of a Self-Organizing Superpeer...

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The Design and Evaluationof a Self-OrganizingSuperpeer Network

AftabSiddiqui08j01a0508Ali Abdur Rahman

08j01a0519S ed Allahbaksh Minha


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4/2/12INTRODUCTION

Our aim is to reduce the burden imposed onInternet Service Providers (ISPs) by the peers(clients).

There are many problems in the existingsystem, an example is to download a filewhich is important to the peer, at the sametime due to critical reasons the server is downdue to many clients doing the same work .

Some times servers shutdown even, hence itis one of the main drawback in the existingsystem. By implementing this process, even aindividual peer act as server to the unknown

peer , which shows a availability to theneeded peer to download his content or any


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About Networking:

A network consists of two or more computers thatare linked in order to share resources (such as printersand CDs), exchange files, or allow electroniccommunications. The computers on a network may belinked through cables, telephone lines, radio waves,satellites, or infrared light beams.


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4/2/12Existing system

In existing system, peer2peer network acts asboth client and sever, so that each canexchange files and email directly with everyother computer on the network. Each

computer can access any of the others,although access can be restricted to thosefiles that a computer's user chooses to makeavailable.


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But the transmission of the data is slow due to

the higher capacity of the nodes. Hence thenode failures, fault tolerance and heavy loadoccur in the network.


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4/2/12Proposed System

In the proposed system, we use self-organizing superpeer network architecture(SOSPNET) for file sharing. By using SOSPNET,we can find out how client peers are related to

superpeers, how superpeers locate files, howthe load is balanced among the superpeers,and how the system deals with node failures.


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SOSPNET maintains a superpeer network topologythat reflects the semantic similarity of peers

sharing content interests. Superpeers maintainsemantic caches of pointers to files, which arerequested by peers with similar interests. Clientpeers, on the other hand, dynamically selectsuperpeers offering the best search performance

such as load balancing and fault tolerance.SOSPNET achieves makes search performance,quickly adjusts to changes in the environment(node joins and leaves), survives even catastrophic

node failures, and efficiently distributes the systemload taking into account superpeer capacities.


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4/2/12Modules

Super peer Module

Peers

Super Peer Thread

Share Thread

Refresh option

File Transfer

File details Exchange


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1) Super peer Module: This module is design to holdall file details and their content which are requested byone weak peer and successfully transferred by otherweak peer. If request came for previous file then Superpeer will fulfill the response. Super peer contains allconnected weak peers and their ip addresses and portnumber. If any peer disconnected then that peer ipaddress will be removed.


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2) Peers: This is main module which is available in allpeer systems. This module is design to connect tocache peer and connect to all other peers which are

up. This peer module exchanged their entire availablefile name with each other. One peer can request toother peer through cache server with selected filename which was already exchanged between them.


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3) Super Peer Thread: This module is supportingmulti connection with Super peer and other Peers and

it will enable Super peer and weak peers tosend/receive multiple file request and connectionrequest.

4) Share Thread: This module is supporting multiconnection for Peers.


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5) Refresh option: This option will help peers to lookfor old connection which are currently up.

6) File Transfer: This option help peers to transferfiles.

7) File details Exchange: This option helps all weakpeers to exchange their file details with one another.


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4/2/12Hardware requirements

Pentium 4 processor

1 GB RAM

80 GB Hard Disk Space


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4/2/12Software requirements

Microsoft Windows XP Professional

JDK 6.0

Java Swing


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4/2/12Conclusion

Super-peer networks are effective becausethey combine the efficiency of the centralizedclient-server model with the autonomy, loadbalancing and robustness of distributed

search. They also take advantage ofheterogeneity of capabilities across peers.Because well-designed super-peer networkspromise large performance improvements forP2P systems, it is important to base designdecisions on a solid understanding of thesystems behavior, rather than on theguesswork currently being used.


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the design and evaluation of a self-organizing superpeer

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