Techniques are disclosed relating to retaining a log entry in response to detection of a respective triggering event occurring within a computer network. This triggering event may result in a set of processes being performed. A computer system may determine a trace signature for the log entry. This trace signature may track information related to the set of processes. The computer system may compute, using the trace signature, a log retention value for the log entry. This log retention value may be computed using weight factors for ones of the set of processes. The computer system may retain the log entry within a log file according to a retention period that corresponds to the log retention value.