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Data replication protocol

  • US 20030018732A1
  • Filed: 10/11/2001
  • Published: 01/23/2003
  • Est. Priority Date: 07/16/2001
  • Status: Active Grant
First Claim
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1. A method for replicating data from a master server to a slave server over a network, the method comprising the steps of:

  • sending a packet of information from the master server to the slave server, the information relating to a change in the data stored on the master server and containing a version number for the present state of the data;

    allowing the slave server to determine whether the data on the slave server has been updated to correspond to the version number contained in the packet; and

    requesting a delta be sent from the master server to the slave server if the data on the slave server does not correspond to the version number contained in the packet, the delta containing information needed to update the slave server.

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