12.2 New Tracing feature for client, server and listener allows time limit for collection!
The latest version of Oracle Net 12.2 will allow us to limit the amount of time that client, server and listener traces will collect. We can now set an 'age' limit in minutes.
See the following Knowledge base document for a detailed description of this exciting new feature:
12.2 Oracle Net Tracing New Feature - Time (Age) Limit When Generating Traces (Client, Server and Listener) (Doc ID 2224584.1)
Here's an example of sqlnet.ora file server trace settings with this feature enabled. Note that "fileage" and "fileno" work together here to limit the trace collection in minutes and the number of files that get written in a cyclic fashion.