×

Method and apparatus for asynchronous processing of dynamic replication messages

  • US 4,620,276 A
  • Filed: 06/02/1983
  • Issued: 10/28/1986
  • Est. Priority Date: 06/02/1983
  • Status: Expired due to Term
First Claim
Patent Images

1. A method for operating a computing apparatus as this node in a multiprocessing system having at least one paired node, this node including means for receiving request messages with respect to the paired node, comprising the steps executed at this node of:

  • generating a first rank value;

    receiving from said paired node a second rank value;

    associating said first and second rank values with a data atom replicated at said this node and said paired node;

    receiving a request message from said paired node, the request message including a third rank value, a fourth rank value, and a request;

    the first and third rank values being indicative of a significant event time at this node and the second and fourth rank values being indicative of a significant event time at paired node; and

    comparing said first and second rank values with said third and fourth rank values, respectively, and selectively processing said request based upon their correspondence.

View all claims
  • 2 Assignments
Timeline View
Assignment View
    ×
    ×