Effect of system dynamics on coupling architectures for transaction processing

The authors present a comparison on the resilience of the performance to system dynamics of three multinode architectures for transaction processing. They describe the different architectures considered. The issues of system dynamics are addressed. The performance model is outlined. Three specific scenarios are considered: (1) a sudden load surge in one of the transaction classes, (2) varying transaction rates for all transaction classes, and (3) failure of a single node. It was found that the different architectures require different amounts of capacity to be reserved to cope with these dynamic situations. Quantitative comparisons of the three architectures are given