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Trace and Log Analysis: A Pattern Reference for Diagnostics and Anomaly Detection by Software Diagnostics Institute, Dmitry Vostokov

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Calibrating Trace

Multiple traces and logs are usually collected for diagnosing distributed systems. Different tools and tracing settings (circular, sequential, file size limit) may be used, systems may be unsynchronized, and individual system tracing may be started at different times due to manual tracing setup and switching between systems. There may be Blackouts, Circular, and Truncated traces. When we analyze such a trace set (Inter-Correlation), we usually select one trace or log that is used as Calibrating Trace. It is used for measuring all other traces against Basic Facts such as start and end tracing times, and the time of the problem. One such scenario is illustrated in the following diagram:

 

Cartesian Trace

Cartesian Trace analysis ...

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