LSF_MASTER_LIST

Syntax

LSF_MASTER_LIST="host_name ..."

Description

Required. Defines a list of hosts that are candidates to become the master host for the cluster.

Listed hosts must be defined in lsf.cluster.cluster_name.

Host names are separated by spaces.

Tip:

On UNIX and Linux, master host candidates should share LSF configuration and binaries. On Windows, configuration files are shared, but not binaries.

Starting in LSF 7, LSF_MASTER_LIST must be defined in lsf.conf.

If EGO is enabled, LSF_MASTER_LIST can only be defined lsf.conf. EGO_MASTER_LIST can only be defined in ego.conf. EGO_MASTER_LIST cannot be defined in lsf.conf. LSF_MASTER_LIST cannot be defined ego.conf.

LIM reads EGO_MASTER_LIST wherever it is defined. If both LSF_MASTER_LIST and EGO_MASTER_LIST are defined, the value of EGO_MASTER_LIST in ego.conf is taken. To avoid errors, you should make sure that the value of LSF_MASTER_LIST matches the value of EGO_MASTER_LIST, or define only EGO_MASTER_LIST.

If EGO is disabled, ego.conf not loaded and the value of LSF_MASTER_LIST defined in lsf.conf is taken.

When you run lsadmin reconfig to reconfigure the cluster, only the 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.

If you have a large number of non-master hosts, you should configure LSF_LIM_IGNORE_CHECKSUM=Y to ignore warning messages like the following logged to lim log files on non-master hosts.

Feb 26 13:47:35 2013 9746 4 9.1.3 xdr_loadvector: 
Sender <10.225.36.46:9999> has a different configuration

Interaction with LSF_SERVER_HOSTS

You can use the same list of hosts, or a subset of the master host list defined in LSF_MASTER_LIST, in LSF_SERVER_HOSTS. If you include the primary master host in LSF_SERVER_HOSTS, you should define it as the last host of the list.

If LSF_ADD_CLIENTS is defined in install.config at installation, lsfinstall automatically appends the hosts in LSF_MASTER_LIST to the list of hosts in LSF_SERVER_HOSTS so that the primary master host is last. For example:

LSF_MASTER_LIST="lsfmaster hostE"

LSF_SERVER_HOSTS="hostB hostC hostD hostE lsfmaster"

The value of LSF_SERVER_HOSTS is not changed during upgrade.

EGO parameter

EGO_MASTER_LIST

Default

Defined at installation