Today's middleware applications tend to be complicated, and consist of tiers that form a nested chain of objects or processes. Fora real-time nested application, predictability is crucial, even when faults and res...
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ISBN:
(纸本)1892512459
Today's middleware applications tend to be complicated, and consist of tiers that form a nested chain of objects or processes. Fora real-time nested application, predictability is crucial, even when faults and restarts occur nested applications make it challenging to predict the processing time when faults occurs. The fault-defection and recovery times are influenced by the number of tiers, the tier in which the fault occurs, the state of the end-to-end processing when the fault occurs, and the processing time of each tier We investigate the behavior of nested CORBA applications when faults occur in different tiers, and at different stages of the nested processing. We present a model for predicting the worst-case fault-detection and fail-over times for such nested applications.
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