Efficiently extracting operational profiles from execution logs using suffix arrays
ISSRE'09 Proceedings of the 20th IEEE international conference on software reliability engineering
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Operational profiles are an essential part of software reliability engineering. Typically they are created from the software requirements, and through customer reviews. Creation of operational profiles often is laborious and requires human intervention. Our approach builds an operational profile based on the actual usage from execution logs. The difficulty in using execution logs is that the amount of data to be analyzed is extremely large (more than a million records per day in many applications). Our solution constructs operational profiles by identifying all the possible clustered sequences of events (patterns) that exist in the logs. This is done very efficiently using suffix arrays data structure.