|Skip Navigation Links|
|Exit Print View|
|Oracle GlassFish Server 3.1-3.1.1 High Availability Administration Guide|
A GlassFish Server instance is a single Virtual Machine for the Java platform (Java Virtual Machine or JVM machine) on a single node in which GlassFish Server is running. A node defines the host where the GlassFish Server instance resides. The JVM machine must be compatible with the Java Platform, Enterprise Edition (Java EE).
GlassFish Server instances form the basis of an application deployment. An instance is a building block in the clustering, load balancing, and session persistence features of GlassFish Server. Each instance belongs to a single domain and has its own directory structure, configuration, and deployed applications. Every instance contains a reference to a node that defines the host where the instance resides.
The following topics are addressed here: