Recovery and restart of a batch application

Details Recovery and restart of a batch application Recovery and restart of a batch application

2011-02-22

2011-02-22

Beausoliel, Robert (Department: 2113)

Error detection/correction and fault detection/recovery

Data processing system error or fault handling

Reliability and availability

C714S005110, C714S006130, C714S015000

Reexamination Certificate

active

07895474

ABSTRACT:
A method of operating a data processing system comprises executing a batch application, the executing comprising reading one or more inputs from one or more data files, performing updates on one or more records according to the or each input read from a data file, and issuing a syncpoint when said updates are completed. During the execution of the batch application, syncpoints are periodically issued and checkpoints are less frequently issued. Following detection of a failure of the batch application, the batch application is restarted with the last issued checkpoint, and the batch application is executed by reading one or more inputs from one or more data files, but not performing updates on said records, until the last issued syncpoint is reached.

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