The trace log records application notifications, such as protocol messages, policy messages, and custom messages generated by policy actions, for individual Mediation servers. Trace logs are not replicated between Mediation servers in a cluster, but they persist after failovers.
You can configure the severity of messages that are recorded in the trace log. See Configuring Trace Log Settings for details. You can use the log to debug problems by tracing through application-level messages. See Viewing the Trace Log for more information about the trace log.