Adding and Removing Data Center Nodes

Your Data Center license is based on the number of users in your cluster, rather than the number of nodes. This means you can add and remove nodes from your Data Center cluster at any time. 

If you deployed Confluence Data Center on AWS using the Quick Start, your Confluence and Synchrony nodes will be in auto-scaling groups. You will add and remove nodes in the AWS console either by changing the minimum and maximum size of each group or using a scaling plan. 

Adding a node

To add a node:

  1. Copy the installation directory and local home directory from the stopped node to your new node.
  2. Start Confluence on your new node.
    During the startup process Confluence will recover indexes from a running node to bring the new node up to date.
  3. Go to  > General Configuration > Clustering and check that the new node is visible.

You should only start one node at a time. Starting up multiple nodes simultaneously can cause serious failures. 

Removing a node

To remove a node, stop Confluence on that node.  You can then remove the installation and local home directory as required. 

To see the number of nodes remaining go to  > General Configuration > Clustering.

Changing the node identifier

Confluence generates an identifier for each node in your cluster. You can use the confluence.cluster.node.name system property to set the node identifier on each node so that it's easier for your users and administrators to read. 

See Configuring System Properties for more information on how to set the system property. 

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