I am looking for information to understand why the hub restarted if it was related to a user interaction.
Release : 20.4
Component : UIM - HUB
The output, at loglevel 4. However you can get all the pertinent information at loglevel=1.
May 27 09:46:13:327  1 hub: verify - [target] prid=hub cmd=_restart ip=<sourceIP that issued the callback> perm=3
May 27 09:46:13:328  2 hub: verify - ACL=Superuser gives permission=super
May 27 09:46:13:328  1 hub: verify - [source] id=<userID that is issuing the command> ip=<sourceIP that issued the callback> hub=prihub (OK)
May 27 09:46:13:328  4 hub: Restarted on request.