Server cluster settings

Use this page to view or change the configuration and local topology of a server cluster instance. Provided you saved your administrative configuration after creating the server cluster instance, one can also view run-time information such as the status of the server cluster instance.

To view this administrative console page, click Servers > Clusters > cluster_name.

 

Configuration tab

Cluster name

Specifies a logical name for the cluster. The name must be unique among clusters within the containing cell.

Data type String

Bounding node group name

Node group that bounds this cluster. All application servers that are members of a cluster must be on nodes that are members of the same node group.

A node group is a collection of WAS nodes. A node is a logical grouping of managed servers, usually on a computer system that has a distinct IP host address. All application servers that are members of a cluster must be on nodes that are members of the same node group. Nodes that are organized into a node group need enough capabilities in common to ensure that clusters formed across the nodes in the node group can host the same application in each cluster member. A node must be a member of at least one node group and can be a member of more than one node group.

Create and manage node groups by clicking System administration > Node groups in the administrative console.

Prefer local

Specifies whether enterprise bean requests are routed to the node on which the client resides, if it is possible to do so.

Select the Prefer Local check box to specify routing of requests to the node on which the client resides. By default, the Prefer Local check box is selected, specifying routing of requests to the node.

Data type Boolean
Default true

Enable high availability for persistent services

Specifies that the recovery logs for persistent services reside on storage devices that have been configured according to high availability requirements.

 

Runtime tab

Cluster name

Specifies a logical name for the cluster. The name must be unique among clusters within the containing cell.

Data type String

Prefer local

Specifies whether enterprise bean requests are routed to the node on which the client resides, if it is possible to do so.

Select the Prefer Local check box to specify routing of requests to the node on which the client resides. By default, the Prefer Local check box is selected, specifying routing of requests to the node.

Data type Boolean
Default true

wlcID

Specifies the currently registered workload controller (WLC) identifier for the cluster. This setting might not display for all configurations.

Data type String

State

Specifies whether cluster members are stopped, starting, or running.

If all cluster members are stopped, the cluster state is stopped. After you request to start a cluster, the cluster state briefly changes to starting and each server that is a member of that cluster launches, if it is not already running. When the first member launches, the state changes to websphere.cluster.partial.start. The state remains partially started until all cluster members are running, then the state changes to running. Similarly, when stopping a cluster, the state changes to partially stopped as the first member stops and changes to stopped when all members are not running.

Data type String
Range Valid values are starting, partially started, running, partially stopped, or stopped.


 

See Also


Clusters and workload management

 

Related Tasks


Creating clusters

 



 

 

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IBM is a trademark of the IBM Corporation in the United States, other countries, or both.