Hi,

 I don't think this will be a problem with most normal operations
 but it was reported here.

 https://bugzilla.redhat.com/show_bug.cgi?id=528045

 I've just checked and is still true for 2.5.2 as well.

 If you start pbs_sched with primary interface down then it fails to start.

 # ifdown eth0

 # hostname -i
192.168.1.2

 # netstat -rn
Kernel IP routing table
Destination     Gateway         Genmask         Flags   MSS Window  irtt Iface

# /etc/init.d/pbs_sched start
Starting TORQUE Scheduler: pbs_sched: LOG_ERROR::Cannot assign requested
address (99) in main, bind
                                                           [FAILED]

after bringing the interface up.

# /etc/init.d/pbs_sched start
Starting TORQUE Scheduler:                                 [  OK  ]

# netstat -tapn | grep pbs
tcp        0      0 192.168.1.2:15004           0.0.0.0:*                  
LISTEN      1262/pbs_sched      


pbs_mom and pbs_sched don't suffer from this.