Is there a way to hide warnings?

Document ID : KB000111844
Last Modified Date : 27/08/2018
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Question:
[WARN] [IntroscopeAgent.Agent] Transaction Tracer user ID has not been configured. User ID will not be reported with transactions.
(1) Is this message output for userid has not been configured ? #introscope.agent.transactiontracer.userid.method=HttpServletRequest.getHeader #introscope.agent.transactiontracer.userid.key=
(2) Would there be a condition of userid non-setting and setting which isn't output?
Answer:

This message is a message indicating that there is no setting for acquiring the user ID in the transaction trace.
Also, this warning is displayed even if transaction trace is not used. There is no way not to display it.
If you do not use transaction trace, you can ignore it and there is no problem.

For the setting of user ID, refer to the following document.

Collecting User ID Data