Any instance of Confluence which uses a clustered license has a Cluster Configuration page which includes information about the active cluster.
To open the Cluster Administration page:
- Choose the cog icon at top right of the screen, then choose Confluence Admin.
- Click 'Cluster Configuration' in the left-hand menu, in the section called 'Clustering'.
To access this functionality, you must:
- Be a System Administrator (i.e. have global System Administrator permissions), and
- be using Confluence 2.3 or later, and
- be using a clustered Confluence license.
The 'Cluster Administration' page shows your cluster configuration, and allows you to start a new Confluence cluster using data from this instance.
Cluster Status indicates whether your cluster is currently running.
Licensed nodes is the maximum number of instances of Confluence your license allows in a cluster.
Active nodes lists the instances of Confluence currently participating in the cluster.
Starting a new cluster will perform the following changes:
- enable a clustered cache
- migrate attachments from file system to the database
- publish database connection information so other nodes can join the cluster.
All access to Confluence will be locked while this takes place, and you will be forced to restart Confluence afterwards.
Cluster name is a short name for identifying your cluster. Other Confluence instances can join the cluster using this name.
To join an existing cluster, start a clean copy of Confluence on this node and select 'Join Cluster' during the setup wizard.