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Analysis of failure recovery schemes for distributed shared-memory systems

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2 Author(s)

Checkpoint and rollback recovery is a technique used to minimise the loss of computation when failures occur. When a process rolls back and re-executes from the last checkpoint, the cost (loss) incurred by redoing the lost computation may be larger than that to execute the original computation. In addition to completion time delay, other performance metrics (e.g. user's satisfaction in real-time on online transaction applications) may also degrade by unexpected failure and recovery. The paper determines how redo overhead factor for unexpected execution overhead affects the performance of recovery scheme. It analyses the performance of three recoverable schemes (incorporating redo overhead factor): multiple fault-tolerant scheme using checkpointing and rollback recovery, single fault-tolerant scheme, and a two-level scheme

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Computers and Digital Techniques, IEE Proceedings -  (Volume:146 ,  Issue: 3 )