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Fault-tolerant transaction-oriented data processing

  • US 5,465,328 A
  • Filed: 01/14/1994
  • Issued: 11/07/1995
  • Est. Priority Date: 03/30/1993
  • Status: Expired due to Fees
First Claim
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1. A method of fault-tolerant transaction-oriented data processing in which resource updates performed by a first application program are made permanent and visible to other application programs only on successful completion of the transaction, and are backed out following discovery of an error condition prior to successful completion, comprising the steps of:

  • initiating execution of a first unit of work, said first unit of work including one or more operations initiated by said first application program;

    specifying whether operations within said first unit of work are to be excluded from the effects of application-requested backouts following detection of error conditions within said first unit of work;

    responsive to detection of an error condition by said first application program, backing out resource updates performed in said first unit of work whilst ensuring that excluded operations are not made available to other application programs and are not backed out by said backing out step;

    establishing a unit of work which includes said excluded operations.

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