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    Home Database
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    Caching Now Points Away From HTML

    By
    Timothy Dyck
    -
    March 26, 2001
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      Caching has risen from the dead over the past year. We at eWeek Labs now see it being used in very nontraditional ways, such as database and streaming-media caching, even while its traditional application, serving up static Web pages, starts to disappear.

      Database caching is just starting to enter the mainstream, with traditional database companies such as Oracle Corp. creating database caching engines for their own products (see Oracle9i Application Server Tech Analysis) and Versant Corp. reworking its own object database into a specialized cache for other vendors? databases.

      There are big technical challenges getting database caching to work with applications that need to make updates because of the need to maintain transactional integrity, but this is an area where much progress is taking place.

      Read-only database caches are simpler to deploy and administer and can offer some immediate performance gains (although not nearly the gains in dynamic page caching).

      Meanwhile, advances in Web servers are rapidly wiping out one of the few areas where caching has become a mature technology. Caching static Web pages, particularly HTML and images, isn?t going to make sense in the future.

      Next-generation Web servers such as Red Hat Inc.?s currently shipping Tux or Microsoft Corp.?s next release of its Internet Information Server provide kernel- level modules and aggressive in-memory caching that will be as fast as, if not faster than, any secondary cache can hope to be.

      Caches will continue to have important roles in the areas of dynamic content and streaming media.

      Timothy Dyck
      Timothy Dyck is a Senior Analyst with eWEEK Labs. He has been testing and reviewing application server, database and middleware products and technologies for eWEEK since 1996. Prior to joining eWEEK, he worked at the LAN and WAN network operations center for a large telecommunications firm, in operating systems and development tools technical marketing for a large software company and in the IT department at a government agency. He has an honors bachelors degree of mathematics in computer science from the University of Waterloo in Waterloo, Ontario, Canada, and a masters of arts degree in journalism from the University of Western Ontario in London, Ontario, Canada.

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