Administering Platform LSF - SAS

Chapter 4
Working with Hosts
External host group requirements (egroup)
An external host group is a host group for which membership is not statically
configured, but is instead retrieved by running an external executable with the
name egroup. The egroup executable must be in the directory specified by
LSF_SERVERDIR.
This feature allows a site to maintain group definitions outside LSF and import
them into LSF configuration at initialization time.
The egroup executable is an executable you create yourself that lists group
names and hosts that belong to the group.
This executable must have the name egroup. When mbatchd is restarted, it
invokes the egroup executable and retrieves groups and group members. The
external executable egroup runs under the same account as mbatchd.
The egroup executable must write host names for the host groups to its
standard output, each name separated by white space.
The egroup executable must recognize the following command, since
mbatchd invokes external host groups with this command:
egroup -m host_group_name
where host_group_name is the name of the host group defined in the
executable egroup along with its members, and the host group is specified in
lsb.hosts.
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