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Method of replicate file updating by monitoring file accesses and system therefor

  • US 5,452,448 A
  • Filed: 03/10/1993
  • Issued: 09/19/1995
  • Est. Priority Date: 03/16/1992
  • Status: Expired due to Term
First Claim
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1. A replicate file updating method in a distributed data processing system including a communication network and at least three kinds of processing systems connected through said communication network, at least a third kind of said processing systems for accessing files of a first and a second kind of said processing systems, comprising:

  • a step performed by the second kind of processing system of monitoring a communication made between said third kind of processing system and said first kind of processing system for updating a file in said first kind of processing system by acquiring updating contents from the third kind of processing system;

    a step of detecting said communication for detecting whether or not said second kind of processing system has a replicate file of the file to be updated;

    a step of making said second kind of processing system also take in the acquired update contents thereinto sent from said third kind of processing system if said detecting step detects that said second kind of processing system has the replicate file; and

    a step of updating said replicate file in said second kind of processing system, with the updating contents.

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