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Reducing latency when synchronizing access to a multi-user database over a network

  • US 5,838,909 A
  • Filed: 05/23/1996
  • Issued: 11/17/1998
  • Est. Priority Date: 05/23/1996
  • Status: Expired due to Term
First Claim
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1. A method of reducing latency in accessing in a master database stored in a node of a network having a plurality of nodes including a first node and a second node, the first node including a first event server and the second node including a second event server, the first event server and the second event server each having a status as a master event server or a slave event server with respect to network events, the event server having the status of master event server sequencing node commands to the master database, wherein at any given time only one node in the network can have the status of master event server and each node in the network processes events received from the master event server differently than events received from slave event servers, the method comprising the steps of:

  • (a) changing the status of the first event server from master event server to slave event server based on a network latency criterion; and

    (b) assigning the status of master event server to the second event server based on the network latency criterion.

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