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OpenDHT: A Public DHT Service

Date and Time
Monday, March 28, 2005 - 4:00pm to 5:30pm
Computer Science Small Auditorium (Room 105)
Sean Rhea, from UC Berkeley
Vivek Pai
Large-scale distributed systems are hard to deploy, and distributed hash tables (DHTs) are no exception. To lower the barriers facing DHT-based applications, we have created a public DHT service called OpenDHT. Designing a DHT that can be widely shared, both among mutually-untrusting clients and among a variety of applications, poses two distinct challenges. First, there must be adequate control over storage allocation so that greedy or malicious clients do not use more than their fair share. Second, the interface to the DHT should make it easy to write simple clients, yet be sufficiently general to meet a broad spectrum of application requirements. In this talk I will describe our solutions to these design challenges. I'll also report on our early deployment experiences with OpenDHT and describe the variety of applications already using the system.
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