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NSDI '04 — Abstract
Pp. 239–252 of the Proceedings
Democratizing Content Publication with Coral
Michael Freedman, Eric Freudenthal, and David Maziéres, New York University
Abstract
CoralCDN is a peer-to-peer content distribution network that allows a
user to run a web site that offers high performance and meets huge
demand, all for the price of a cheap broadband Internet connection.
Volunteer sites that
run CoralCDN automatically replicate content as a side
effect of users accessing it. Publishing through CoralCDN is as
simple as making a small change to the hostname in an object's URL; a
peer-to-peer DNS layer transparently redirects browsers to nearby
participating cache nodes, which in turn cooperate to minimize load on
the origin web server. One of the system's key goals is to avoid
creating hot spots that might dissuade volunteers and hurt
performance.
It achieves this through Coral,
a latency-optimized hierarchical indexing infrastructure based on
a novel abstraction called a distributed sloppy hash
table,
or DSHT.
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