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Distributed cache for state transfer operations

  • US 8,032,642 B2
  • Filed: 01/26/2010
  • Issued: 10/04/2011
  • Est. Priority Date: 02/13/2001
  • Status: Expired due to Fees
First Claim
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1. A system for maintaining session based communications with a client computer, the system comprising:

  • a first server for communicating with the client computer, the first server employing a cache memory storing at least a portion of state information for a session with the client computer; and

    a second server employing a cache memory storing necessary portions of state information for the session with the client computer, wherein the client computer may switch connection to the second server when connection with the first server terminates while maintaining the state information established between the client computer and the first server, and wherein the second server may request additional portions of state information from the first server if the additional portions of the state information are not immediately present at the second server upon establishment of the connection with the client computer.

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