coturn的一些问题 Some problems of coturn

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Hello, I have some problems in using coturn. The version I use is

Coturn 4.4.5.2.

The questions are as follows:

Our usage scenario is SIP call, the client is PJSIP, ICE is implemented, and the server is coturn. Occasionally, coturn stops forwarding in our usage process. This situation is random and less probabilistic. We checked, not relay port timeouts. At present, there is no error output in the log. Through the server tcpdump, we find that relay mode is the first mode of call and srflx mode is the next mode. But client A sending and receiving is not a port (srflx is the sending and receiving, relay) and should be a port under normal circumstances.

At present, we hope to have more information to assist us in our investigation. How about more detailed log output for coturn?How to output the current time in the log?

Thanks for your help