LSF Version 7.3 - Administering Platform LSF

Tuning LIM
664 Administering Platform LSF
If you make changes that affect load report messages such as load indices, you must
restart all the LIMs in the cluster. Use the command
lsadmin reconfig.
How LSF works with LSF_MASTER_LIST
LSF_MASTER_LIST undefined
In this example,
lsf.shared and lsf.cluster.cluster_name are shared among all
LIMs through an NFS file server. The preferred master host is the first available
server host in the cluster list in
lsf.cluster.cluster_name.
Any slave LIM can become the master LIM. Whenever you reconfigure, all LIMs
read
lsf.shared and lsf.cluster.cluster_name to get updated information.
For this example, slave LIMs read local
lsf.conf files.
LSF_MASTER_LIST defined
The files
lsf.shared and lsf.cluster.cluster_name are shared only among LIMs
listed as candidates to be elected master with the parameter LSF_MASTER_LIST.
The preferred master host is no longer the first host in the cluster list in
lsf.cluster.cluster_name, but the first host in the list specified by
LSF_MASTER_LIST in
lsf.conf.
Whenever you reconfigure, only master LIM candidates read
lsf.shared and
lsf.cluster.cluster_name to get updated information. The elected master LIM
sends configuration information to slave LIMs.
The order in which you specify hosts in LSF_MASTER_LIST is the preferred order
for selecting hosts to become the master LIM.