Hi,
We use in production cluster troque from epel6. Our cluster is part of large set of clusters that use packages EPEL repository https://twiki.cern.ch/twiki/bin/view/EMI/GenericInstallationConfigurationEMI...
Everything worked fine until torque updated to torque-4.2.10-9.el6 with enabled NUMA https://bugzilla.redhat.com/show_bug.cgi?id=1231148
This update don't starts at all. I filed bug against torque https://bugzilla.redhat.com/show_bug.cgi?id=1321154
There was suggested to remove NUMA support and build different set of packages with enabled NUMA.
But maintainer solution was to add file that required for starting pbs_mom service. Just installing of torque-4.2.10-10.el6 update still don't works (service starts but nodes down). This solution needs additional reconfiguration of pbs_server but we can't do such experiments on our cluster because there is no guarantee that after reconfiguration everything will work as expected.
EPEL update policy recommends to avoid updates that causes such problems https://fedoraproject.org/wiki/EPEL_Updates_Policy#Stable_Releases