It seems the rsync upgrade procedure from 6 to 7 fails now:
Feb 27 11:36:43 intra esmith::event: WARNING in /etc/e-smith/templates//etc/yum/vars/nsrelease/50output: Use of uninitialized value $esmith::__TEMPLATE__::4::release in string at /etc/e-smith/templates//etc/yum/vars/nsrelease/50output line 1.
This regression is probably caused by the last update: Ultimate ns7 software updates origin policy
Fix is coming: avoid to upgrade ns6 systems by now. Stay tuned.