Excavating
Patent
1990-10-23
1992-09-29
Canney, Vincent P.
Excavating
371 12, G06F 1500, G06F 1200
Patent
active
051519879
ABSTRACT:
The present invention is directed to systems and methods for recovering from unplanned failures in object oriented computing environments. The systems and methods of the present invention recover from unplanned failures in an efficient manner by storing recovery information in recovery objects. During recovery operations from an unplanned failure, object instance methods (which were abnormally terminated by the unplanned failure) use the recovery information to identify committable actions which were executed prior to the unplanned failure. The object instance methods then execute committable actions which were not executed prior to the unplanned failure. Thus, according to the present invention, the committable actions which were executed prior to the unplanned failure are not re-executed, and the committable actions which were not executed prior to the planned failure are executed.
REFERENCES:
patent: 4853843 (1989-08-01), Ecklund
W. J. Sohn, "Extended-Arm Rotary Actuator for Magnetic Recording Disk Drive" IBM Technical Disclosure Bulletin vol. 32, No. 6A, Nov. 1989, pp. 112-114.
Bennett, et al., "Object Creation Mechanism for an Object Management System", IBM Technical Disclosure Bulletin vol. 18, No. 5, Oct. 1975 pp. 1361-1364.
Abraham Robert L.
Moorman Thomas P.
Priven Michael P.
Canney Vincent P.
International Business Machines - Corporation
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