Clusters

A cluster is a group of WebLogic Server instances that work together to provide scalability and high-availability for applications. By creating clusters, you can group Managed Servers such that they operate as a single unit for hosting applications and resources. More

Use this screen to add or delete clusters. You can also change the settings for an existing cluster.

Column Description

Cluster Name

Enter a valid name. The name of the cluster must be unique among all component names within the WebLogic domain.

Cluster Address

Enter the addresses for identifying the Managed Servers in the cluster. A cluster address can be one of the following:

  • Comma-separated list of IP addresses or DNS names and ports (for example: dns_name:port, dns_name:port)

  • DNS name that maps to multiple IP addresses

  • localhost, DNS name, or IP address if the listen address of all Managed Servers is listening to the same address with unique port numbers

To delete a cluster, select the server and click Delete. When you delete a cluster, you do not delete the servers assigned to it; the servers are merely removed from the cluster and can then be added to another cluster. You can delete only one cluster at a time.

To add a cluster, click Add and configure the settings for the new server. The default name for a new cluster is new_Cluster_n, where n starts at 1 and increments for each new cluster you add. To change the default, type the desired name in the Name column.

Related Topics

Assign Servers to Clusters

HTTP Proxy Applications

"Setting Up WebLogic Clusters" in Administering Clusters for Oracle WebLogic Server

"Managed Servers and Managed Clusters" in Understanding Oracle WebLogic Server