Cost/benefit based checkpointing while maintaining a logical...

Details Cost/benefit based checkpointing while maintaining a logical... Cost/benefit based checkpointing while maintaining a logical...

2008-04-22

2008-04-22

Beausoliel, Robert (Department: 2113)

Error detection/correction and fault detection/recovery

Data processing system error or fault handling

Reliability and availability

C714S015000, C707S793000, C707S793000

Reexamination Certificate

active

07363538

ABSTRACT:
A method, system, and computer program product for generating checkpoint information in a database management system that determines the frequency of checkpointing of transactions based on a cost/benefit tradeoff analysis. A method for generating checkpointing information in a database management system comprises the steps of generating redo information based on transactions processed by the database management system, determining a cost of recovery using the redo information, determining a cost of taking a checkpoint, receiving a user specification of acceptable recovery delay and acceptable checkpoint overhead, and taking a checkpoint when cost effective to do so based on the cost of recovery using the redo information, the cost of taking the checkpoint and the user-specified acceptable delay and overhead.

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Krishna et al. “Optimization Criteria for Checkpoint Placement.” Communications of the ACM. vol. 27, No. 10, Oct. 1984, pp. 1008-1012.
Erol Gelenbe. “On the Optimal Checkpoint Interval.” Journal of the Association for Computing Machinery. vol. 26, No. 2, Apr. 1979, pp. 259-270.

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