Introduction to CSTR DNS Services

When dealing with the number of documents in the CSTR project, it is important that any operations performed over a large set of documents can run in reasonable time. We have found that two of these operations are to check if a particular TR is stored on a server anywhere (and where), and to provide a list of formats in which a particular TR is available. For example, when displaying a list of TRs after a catalog search, we check to see if each TR is available on-line. If so, we add a link to go to the CSTR Services page for that TR. This takes a prohibitively long time unless we use DNS to "cache" the server lookups.

For more information, please choose one of the following:

A description of the services and how they work.
A technical discussion of how our services work and how to use them.

Note: as of 11/15/97, the demos below have fallen into disrepair.

A demonstration of the DNS services in action.
A demonstration developed by Ali Alavi.
Another quick demo of DNS service.

Author: Andrew Kass
Email: delphi@lcs.mit.edu
Last Updated: Wed, Mar 1, 1995
Links to alavi demo and quickdemo and disrepair comment added 11/15/97 by jhs

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