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Transaction clash management in a disconnectable computer and network

  • US 5,878,434 A
  • Filed: 05/27/1997
  • Issued: 03/02/1999
  • Est. Priority Date: 07/18/1996
  • Status: Expired due to Term
First Claim
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1. A method for handling clashes during the synchronization of operations performed on a disconnected first computer with operations performed on a second computer, the synchronization being performed after the first computer and the second computer are reconnected by a network link, the second computer and the first computer each containing a replica of a distributed database, said method comprising the computer-implemented steps of:

  • merging out a representation of the operations performed on the first computer by applying at least a portion of the operations to the second replica;

    merging in a representation of the operations performed on the second computer by applying at least a portion of the operations to the first computer replica;

    detecting persistent clashes during at least one of said merging steps; and

    recovering from at least a portion of the detected persistent clashes.

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