Clustering is one of the strongest points in GlassFish and is very easy to configure.
Clusters in a application server improves reliability and scalability.
A cluster has a Domain Admin Server (DAS) and one or more nodeagents, on the nodeagents can be unlimited instances.
The DAS is a central point of the administration and manages the configuration of [...]
GlassFish is standard in “development mode” delivered.
When clustering is required, you can enable the “enterprise mode” in the admin console.
On the main page of the admin console is an option “add cluster support”. (see fig1)
fig1.
Before you start cluster support do not forget to make a copy of the domain.xml (default under glassfish/domains/domain1/config). So you [...]