Creating a Cluster
To create a cluster in the Enterprise Manager
1. Right-click the Clusters node and select Create Cluster.
2. In the Create New Cluster dialog box, specify a name for the new cluster.
Important:
The Enterprise Manager does not support working with two clusters that have the same name.
3. Add cluster members by selecting realms from the Available Realms list. Click OK.
Important:
A cluster cannot contain two realm nodes with the same node name, even if their host names and port numbers are different.
One of the selected realms becomes the master realm during the creation of the cluster. The master realm controls synchronizing the state between the other realms and acts as the authoritative source for this information.
4. Select whether to migrate local stores to cluster-wide stores.
Click
Yes to convert any local stores, such as channels and queues, on the realms you added to the cluster into cluster-wide stores. These stores will be present on all realms in the cluster.
Note:
If the name of a local store is the same as the name of an existing cluster store, the cluster creation will fail due to a name clash.
Click
No to keep the stores local to the realms. The stores will not be present on other realms in the cluster.
The Enterprise Manager displays the new cluster and its realms in the Clusters node tree. When you select the new cluster node, you can monitor its state on the Cluster Summary tab. The tab shows the state of all cluster members and which realm is the current master.