Why is the owner of the clearcase activity I created is 'NOBODY' but the created by is identified correctly.
Is this the reason why I am not able to view the change set as a different user on a different machine.
Those are representing object (here UCM activities) created by a user with an incorrect CLEARCASE_PRIMARY_GROUP environment variable (ie a group he/she isn't part of, or a group which isn't part of the primary or secondary groups of the vob/pvob of the UCM project).
I usually fix that (as a ClearCase admin) with a:
cd M:\auser_dynamic_ucm_view\avob\a_root_component
cleartool find . -user NOBODY -exec "cleartool protect -chown a_login_name -chgrp agroup \"%CLEARCASE_PN%\""
That would fix incorrect files though, not UCM activities.
For an activity, I would do a:
cleartool protect -chown a_login_name activity:anActivity@\apvob
来源：https://stackoverflow.com/questions/17331166/why-is-the-owner-of-the-clearcase-activity-nobody