Following install of ITSM packages on RPM version of current release, Centos 6 x86_64: Forwarding for documentation purposes.
One additional change was needed:
# cd /opt/otrs # bin/otrs.SetPermissions.pl --otrs-user=otrs --otrs-group=apache --web- user=apache --web-group=apache /opt/otrs
Also, their startup script is a little squirrely, and talks about the PID being registered in the "database". That may be, but they also have a PID file in /opt/otrs/var/run/ that needs to be maintained.
Running
/opt/otrs/bin/otrs.Scheduler.pl -a stop --force
then manually using "ps" to verify it's really dead, seems to be a reliable way of getting it to reset itself completely. If you run "service otrs-scheduler-linux start" and get anything other than "Starting OTRS Scheduler [OK]" as a result, then it was *not* properly reset first.
This was working fine until I did the installation of ITSM module. I think their package manager tried and failed to restart the scheduler and didn't recover gracefully afterward.