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Efficiently serving dynamic data at highly accessed web sites

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5 Author(s)
Challenger, J.R. ; IBM Thomas J. Watson Res. Center, Yorktown Heights, NY, USA ; Dantzig, P. ; Iyengar, A. ; Squillante, M.S.
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We present architectures and algorithms for efficiently serving dynamic data at highly accessed Web sites together with the results of an analysis motivating our design and quantifying its performance benefits. This includes algorithms for keeping cached data consistent so that dynamic pages can be cached at the Web server and dynamic content can be served at the performance level of static content. We show that our system design is able to achieve cache hit ratios close to 100% for cached data which is almost never obsolete by more than a few seconds, if at all. Our architectures and algorithms provide more than an order of magnitude improvement in performance using an order of magnitude fewer servers over that obtained under conventional methods.

Published in:

Networking, IEEE/ACM Transactions on  (Volume:12 ,  Issue: 2 )