Estimating Fault-Detection and Fail-Over Times for Nested Real-Time CORBA Applications

Abstract— Today’s middleware applications tend to be complicated, and consist of tiers that form a nested chain of objects or processes. For a 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-detection 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.

• Type: Conference
• Year: 2003
• Where: PDPTA
• Authors: Sukanya Ratanotayanon, Priya Narasimhan
• Keywords: Nested, Nested Applications, PDPTA 2003, PDPTA 2007, Real-time Nested Application