Log Intelligence: Systematically Leveraging Logs Using Development Knowledge

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Logs are generated at run-time by logging statements that are deliberately added into the source code by developers. Logs generated during the execution play an essential role in field debugging and support activities of large software systems. Such logs are not only for the convenience of developers and operators, but have already become part of legal requirements (e.g., the Sarbanes-Oxley Act of 2002). In recent years, many companies (e.g., IBM, BlackBerry and Microsoft) have started leveraging the rich knowledge in logs to support the development and operation of their large software systems. The broad usage of logs lead to the emergence of a new market for log analysis platforms (e.g., Splunk, XpoLog, and Logstash), which support collecting, storing, searching, and analyzing the large amounts of log data.