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Method, system and computer program for replicating data in a distributed computed environment

  • US 6,338,092 B1
  • Filed: 09/24/1998
  • Issued: 01/08/2002
  • Est. Priority Date: 09/24/1998
  • Status: Expired due to Fees
First Claim
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1. A method for replicating data in a distributed system, comprising the steps of:

  • from each of a plurality of originating nodes, sending updates and associated origination sequence numbers to a central hub, wherein a given update is directed to a distribution group comprising a set of the originating nodes;

    from the central hub, sending updates and associated distribution sequence numbers to the plurality of originating nodes;

    in the central hub, tracking acknowledgments sent by originating nodes, each acknowledgment identifying a last in-sequence distribution sequence number processed by a respective originating node; and

    in the central hub, periodically sending a message to each originating node, the message including information identifying a highest origination sequence number acknowledged by originating nodes comprising the given distribution group.

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