Domain: The basic organizational unit in which the deployed resources are administered.It consists of one or more Weblogic server instances, and logically related resources and services that are managed,collectively,as one unit.
Machine: hosts the weblogic software,which is installed on the machine and on which weblogic server instances run,applications,database and RDBMS,and other software used in the environment.
Administration Server: one instance of weblogic server in each domain acts as an administration server,providing a central point for managing all server instances.
Managed server: hosts application components and resources in a domain,a machine may host multiple managed servers.
Node manager: a java program provided with weblogic server that enables you to start , stop, and monitor remote weblogic server instances.to enable these capabilities,you run an instance of node managemer on each physical machine in your domain.
cluster: consists of multiple server instances running simultaneously and working together to provide increased scalability and reliability.A cluster appears to clients as a single weblogic server instance.The server instances that constitute a cluster can run on the same machine,or be located on different machines.
note: the administration server can never be a member of a cluster.
Database: Hosts application and system data.Weblogic platform supports common RDBMS systems for databases,such as PointBase,Oracle,Microsoft SQL Server,DB2 and Sybase.Interaction with an RDBMS is enabled via weblogic JDBC.
Load Balancer/Proxy : Distributes client connection requets,provides load balancing and failover across the cluster, and provides security by concealing the local area network addresses from external users.
Machine: hosts the weblogic software,which is installed on the machine and on which weblogic server instances run,applications,database and RDBMS,and other software used in the environment.
Administration Server: one instance of weblogic server in each domain acts as an administration server,providing a central point for managing all server instances.
Managed server: hosts application components and resources in a domain,a machine may host multiple managed servers.
Node manager: a java program provided with weblogic server that enables you to start , stop, and monitor remote weblogic server instances.to enable these capabilities,you run an instance of node managemer on each physical machine in your domain.
cluster: consists of multiple server instances running simultaneously and working together to provide increased scalability and reliability.A cluster appears to clients as a single weblogic server instance.The server instances that constitute a cluster can run on the same machine,or be located on different machines.
note: the administration server can never be a member of a cluster.
Database: Hosts application and system data.Weblogic platform supports common RDBMS systems for databases,such as PointBase,Oracle,Microsoft SQL Server,DB2 and Sybase.Interaction with an RDBMS is enabled via weblogic JDBC.
Load Balancer/Proxy : Distributes client connection requets,provides load balancing and failover across the cluster, and provides security by concealing the local area network addresses from external users.
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