Comment # 68 on bug 918226 from Patrick Schaaf

(In reply to Eric Benton from comment #66)
> The systemd logging is excessive IMHO, i get this about once a minute and
> cant seem to stop it.
> 
> 015-02-25T01:29:01.976221-08:00 erb1 systemd[1]: Starting Session 11299 of
> user root.
> 2015-02-25T01:29:01.976977-08:00 erb1 systemd[1]: Started Session 11299 of
> user root.

This is nothing new, so a bit off-topic for this bug report.

Anyway, you can get rid of it (along with any other info or debug messages from
systemd), with a call to "systemd-analzye set-log-level notice".

Continuing off-topic :) that then leaves me with useless messages from cron
pam_unix(crond:session) for the same events...