Snorkelling in the Oracle Listener Logs.
(Snorkelling is not quite as in depth as a “deep dive”!) Attempting to parse a listener.log will probably bend your brain, but I needed to do it recently to determine which unique servers and/or desk...

(Snorkelling is not quite as in depth as a “deep dive”!) Attempting to parse a listener.log will probably bend your brain, but I needed to do it recently to determine which unique servers and/or desk...
You know the score, you are running an impdp and it looks to have hung up. You’ve watched the log file (or on screen messages) and it’s sitting at something like: Processing object type TABLE_EXPORT/...