A Business-Oriented Fault Localization Approach Using Digraph

Analyzed here is a fault localization approach based on directed graph in view point of business software. The fault propagation model solved the problem of obtaining the dependency relationship of faults and symptoms semi-automatically. The main idea includes: get the deployment graph of managed business from the topography of network and software environment; generate the adjacency matrix of the graph; compute the transitive closure of adjacency matrix and obtain a so-called dependency matrix; independent fault locates in the main diagonals of the dependency matrix, elements of column is fault’s symptoms domain, which are divided into immediate effect and transitive effect. In real world, those elements will denote symptoms, but the two class affected nodes have different probability of occurrence, that is, immediate symptoms can be observed more likely than transitive symptoms and symptom of fault itself is most likely observed. Based on the hypothesis, a new fault localization algorithm is proposed. The simulation results show the validity and efficiency of this fault localization approach.