Message log analysis for system behavior evaluation

Details Message log analysis for system behavior evaluation Message log analysis for system behavior evaluation

2007-10-17

2011-12-06

Rivas, Omar Fernandez (Department: 2122)

Data processing: artificial intelligence

Miscellaneous

C706S045000, C706S046000, C706S047000, C706S048000, C706S052000, C709S224000, C709S225000, C709S226000

Reexamination Certificate

active

08073806

ABSTRACT:
A technique is disclosed that enables the run-time behavior of a data-processing system to be analyzed and, in many cases, to be predicted. In particular, the illustrative embodiment of the present invention comprises i) transforming the messages that constitute an unstructured log into a numerical series and ii) applying a time-series analysis on the resultant series for the purpose of pattern detection. Indeed, it is recognized in the illustrative embodiment that the problem really is to detect patterns that depict aspects of system behavior, regardless of the textual content of the individual log messages. In other words, by analyzing the totality of the messages in the log or logs—as opposed to looking for pre-defined patterns of the individual messages—system behavior can be mapped and understood. The mapping helps in characterizing the system for the purposes of predicting failure, determining the time required to reach stability during failure recovery, and so forth.

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