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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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Quotient Trace

In Adjoint Message analysis pattern description, we mentioned compressing message sequences having the same message attribute into one message. Considering the trace as “topological” space and message attribute as “equivalence” relation, we introduce Quotient Trace analysis pattern by analogy with quotient space105 in topology. By endowing message sequences having the same attribute with some “metric” such as cardinality of Message Set we can also visually distinguish resulted quotient messages if they have the same attribute but from different sequences at different times. All this is illustrated in the following diagram:

 

 

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