RemoteDataManagers section

Optional. The RemoteDataManagers section of the lsf.datamanager file tells a local LSF data manager how to communicate with remote LSF data managers in LSF multicluster capability forwarding clusters. Only the cluster that is sending jobs needs to configure the RemoteDataManagers section.

Before a job with data requirements is forwarded to another cluster, the local LSF data manager contacts remote LSF data managers, which serve as candidate clusters for job forwarding. The local dmd daemon collects the information that is needed for the scheduler forwarding decision. If the dmd daemon of a candidate forwarding cluster is not configured in the section, LSF excludes that cluster from being scheduled for job forwarding.

Configure RemoteDataManagers section only in LSF multicluster capability submission clusters. When the RemoteDataManagers section is configured, LSF maintains a connection between the LSF data manager management host in each cluster, and uses this connection to query the availability of remote files.

By default, the local cluster can obtain information about all other clusters that are specified in the lsf.shared file. The RemoteDataManagers section limits the clusters that the local cluster can obtain information about.

Every cluster in the lsf.shared file that has LSF data management features enabled must appear in the list of clusters.

You can configure only one RemoteDataManagers section in the lsf.datamanager file. If more than one RemoteDataManagers section exists, only the first section takes effect. Sections beyond the first one are ignored. Duplicate cluster names are ignored, and the first cluster name in the list is used.

The bdata connections command reports the connection status of each remote LSF data manager. If the configuration has errors, the corresponding manager shows as disconnected (disc) in the output of the bdata connections command.

The first line consists of the following required keywords:
  • CLUSTERNAME
  • SERVERS
  • PORT

Subsequent lines specify the cluster names, server hosts, and ports for the remote LSF data managers.

Example RemoteDataManagers section format

Begin RemoteDataManagers
CLUSTERNAME   SERVERS                      PORT
cluster1      (host11 host12 ... host1n)   1729
cluster2      (host21 host22 ... host2n)   4104
clusterM      (hostM1 hostM2 ... hostMn)   13832
End RemoteDataManagers

RemoteDataManagers parameters

CLUSTERNAME
Specify a list of the clusters that you want the local cluster to recognize as LSF data managers.
SERVERS
The list of servers must correspond to the value of the LSF_DATA_HOSTS parameter in the lsf.conf file of the appropriate cluster.
PORT
The port number for the cluster must correspond to the value of the LSF_DATA_PORT parameter in the lsf.conf file of the appropriate cluster.