Server cluster collection
View information about and change configuration settings for a cluster. A cluster consists of a group of application servers. If one of the application servers fails, requests are routed to other members of the cluster.
From the admin console, click...
Servers > Clusters > WebSphere application server clusters.
To define a new cluster, click New to start the Create a new cluster wizard.
Name
Logical name for the cluster. The name must be unique among clusters within the containing cell.
Status
This field indicates whether the cluster is partially started, started, partially stopped, stopped, or unavailable. If the status is unavailable, the node agent is not running in that node and we must restart the node agent before we can start the server.
After clicking Start or Ripplestart to start a cluster, each server that is a member of that cluster launches if it is not already running. When the first member launches, the status of the cluster changes to partially started. The status remains partially started until all cluster members are running. When all cluster members are running, the state changes to running and the status of the cluster changes to started. Similarly, when you click Stop or ImmediateStop to stop a cluster, the status changes to partially stopped when the first member stops, and then changes to stopped when all cluster members are not running.
| Icon | Status | Description |
|---|---|---|
|
| Started | The server is running. |
|
| Partially started | The server is in the process of changing from a stopped state to a started state. |
|
| Partially stopped | The server is in the process of changing from a started state to a stopped state. |
|
| Stopped | The server is not running. |
|
| Unknown | The server status cannot be determined. |
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