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Routing client requests to back-end servers

  • US 6,823,391 B1
  • Filed: 10/04/2000
  • Issued: 11/23/2004
  • Est. Priority Date: 10/04/2000
  • Status: Active Grant
First Claim
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1. In a computerized system that includes a client system, a front-end server, and one or more back-end servers, all interconnected with a communication link, a method of accessing content stored at a particular back-end server such that the client system does not know which of the one or more back-end servers store the content, the method comprising the front-end server performing the acts of:

  • receiving a request for the content from the client system, the request including a resource identifier that references the front-end server and the content being requested by the client system;

    examining a global catalog that dynamically maps the resource identifier to a plurality of back-end servers storing the requested content;

    identifying a particular back-end server storing the requested content, from the plurality of back-end servers mapped to the resource identifier in the global catalog, wherein the same particular back-end server is identified for a given request over time, as long as the same particular back-end server is available and stores the content being requested; and

    directing the request to the particular back-end server.

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