3.5. Managing SGE queues

To display a list of queues within the Rocks cluster, use qconf -sql.

[sysadm1@frontend-0 sysadm1]$ qconf -sql
comp-pvfs-0-0.q
comp-pvfs-0-1.q
comp-pvfs-0-2.q
frontend-0.q

If there is a need to disable a particular queue for some reason, e.g scheduling that node for maintenance, use qmod -d Q where Q is the queue name. You will need to be a SGE manager in order to disable a queue like the root account. You can also use wildcards to select a particular range of queues.

[sysadm1@frontend-0 sysadm1]$ qstat -f
queuename            qtype used/tot. load_avg arch      states
----------------------------------------------------------------------------
comp-pvfs-0-0.q      BIP   0/2       0.10     glinux      
----------------------------------------------------------------------------
comp-pvfs-0-1.q      BIP   0/2       0.58     glinux      
----------------------------------------------------------------------------
comp-pvfs-0-2.q      BIP   0/2       0.02     glinux      
----------------------------------------------------------------------------
frontend-0.q         BIP   0/2       0.01     glinux
[sysadm1@frontend-0 sysadm1]$ su -
Password:
[root@frontend-0 root]# qmod -d comp-pvfs-0-0.q
Queue "comp-pvfs-0-0.q" has been disabled by [email protected]
[root@frontend-0 root]# qstat -f
queuename            qtype used/tot. load_avg arch      states
----------------------------------------------------------------------------
comp-pvfs-0-0.q      BIP   0/2       0.10     glinux    d  
----------------------------------------------------------------------------
comp-pvfs-0-1.q      BIP   0/2       0.58     glinux      
----------------------------------------------------------------------------
comp-pvfs-0-2.q      BIP   0/2       0.02     glinux      
----------------------------------------------------------------------------
frontend-0.q         BIP   0/2       0.01     glinux

To enable back the queue, you can use qmod -e Q. Here is an example of Q being specified as range of queues via wildcards.

[root@frontend-0 root]# qmod -e comp-pvfs-*
Queue "comp-pvfs-0-0.q" has been enabled by [email protected]
root - queue "comp-pvfs-0-1.q" is already enabled
root - queue "comp-pvfs-0-2.q" is already enabled
[root@frontend-0 root]# qstat -f
queuename            qtype used/tot. load_avg arch      states
----------------------------------------------------------------------------
comp-pvfs-0-0.q      BIP   0/2       0.10     glinux       
----------------------------------------------------------------------------
comp-pvfs-0-1.q      BIP   0/2       0.58     glinux      
----------------------------------------------------------------------------
comp-pvfs-0-2.q      BIP   0/2       0.02     glinux      
----------------------------------------------------------------------------
frontend-0.q         BIP   0/2       0.01     glinux

For more information in using SGE, please refer to the SGE documentation and the man pages.