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A Unified Peer-to-Peer Database Framework
and its Application for Scalable Service Discovery
Wolfgang Hoschek
CERN IT Division
European Organization for Nuclear Research
1211 Geneva 23, Switzerland
Wolfgang.Hoschek@cern.ch
Abstract
In a large distributed system spanning many administrative domains such as a Data-
Grid, it is often desirable to maintain and query dynamic and timely information about
active participants such as services, resources and user communities. However, in such a
database system, the set of information tuples in the universe is partitioned over one or
more distributed nodes, for reasons including autonomy, scalability, availability, performance
and security. It is not obvious how to enable powerful discovery query support and
collective collaborative functionality that operate on the distributed system as a whole,
rather than on a given part of it. Further, it is not obvious how to allow for search
results that are fresh, allowing dynamic......

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Approximate Word Count: 13769
Approximate Pages: 56 (250 words per double-spaced page)

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