Log Based Analysis of Software Application Operation

Abstract

Event logs provide the capability to gain insight into system operation under the real workload. They have been widely used to detect anomalies, evaluate dependability including security, service time analysis, etc. The paper outlines log analyses schemes described in the literature and presents a new approach which takes into account specificity of applications embedded into system environment. It takes into account a wide scope of logs, defines and extracts their features helpful in assessing application operation in the considered lifetime span. The presented methodology is illustrated with results related to a complex commercial system used as a case study.