Summary

Starting 11.17.x version we see a string "Listener Thread: running" introduced in the debug log

0:10:23 (demo) Listener Thread: running
 0:10:23 (demo) (@demo-SLOG@) ===============================================
 0:10:23 (demo) (@demo-SLOG@) === Last 10 Client Requests Processing Time (in ms) ===
 0:10:23 (demo) (@demo-SLOG@) Time: Sat Aug 28 2021 00:10:23 PDT
 0:10:23 (demo) (@demo-SLOG@) Request processing time, when, #concurrent clients, client info (user, node, FD)
 0:10:23 (demo) (@demo-SLOG@) 00000000 ms at Sat Aug 28 2021 00:10:23 PDT,#3,(ansl,liro-r981.demo.com,28)

• "Listener Thread: running" has been introduced as a new thread for connection, it is not related to Diagnostics feature in anyway.
• The purpose of it is to accept new connection coming to license server and to improve server performance.
• It is done for optimization purpose.