To set up a Liberty profile to be part of a server cluster, define the clusterMember-1.0 feature in the server.xml file.
To be a member of a server cluster, a Liberty profile must also be a member of a Liberty collective.
See Configuring a Liberty collective for more information.
A server cluster has a unique name within a Liberty collective. All Liberty profiles that specify the same cluster name within the same collective are members of the same server cluster.
A collective server can be configured to be a cluster member while it is running. The new configuration is updated dynamically and published to the collective controller. If a collective server is configured to be a cluster member while the server is stopped, the server will not be a member of a cluster until the server is started.
<featureManager>
<feature>clusterMember-1.0</feature>
</featureManager>
<clusterMember name="<cluster_name>"/>
The default cluster name is defaultCluster.
If no <clusterMember> configuration is specified,
the default cluster name is assumed.