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Application-specific conflict resolution for weakly consistent replicated databases

  • US 5,603,026 A
  • Filed: 12/07/1994
  • Issued: 02/11/1997
  • Est. Priority Date: 12/07/1994
  • Status: Expired due to Term
First Claim
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1. For a distributed database system, an application-specific process for resolving conflicts that are found to exist between an instance of a database and any write operations that are presented for updating said instance of said database, said process comprisingassociating an arbitrary merge-procedure, specified by said application, with each of said write operations, where the effect of executing the merge-procedure is deterministic for any given state of said instance of said database at any time that said merge-procedure is executed;

  • andexecuting the merge-procedure associated with a given write operation whenever it is found that the given write operation conflicts with said instance of said database, said merge-procedure producing a deterministic set of updates that are applied to said database in lieu of any updates originally contemplated by the given write operation.

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