Common cluster operations

In the text, node 192.168.2.100 is "seed-node". When the "admin interface" is specified, this means that you should "surf" to the admin interface on an existing cluster node such as http://192.168.2.100/admin.

Add a cluster node

In the example, the 192.168.2.110 node should be added to a cluster.

• Add the following in custom/conf/sitevision.properties on 192.168.2.110
  • sitevision.cassandra.listen_address=192.168.2.110
  • sitevision.cassandra.seeds=192.168.2.100
    
• Go to the admin interface and click on "Allow new node" and enter 192.168.2.110. Click ok
• Start Sitevision on 192.168.2.110
• In the admin interface, make sure that the new node appears in the cluster ring

Remove a cluster node

In the example, the 192.168.2.110 node should be removed from the cluster.

• Surf to the admin interface (not on 192.168.2.110 ) and right-click on 192.168.2.110 and select "Shutdown"
• Wait until the node is down and red
• Right-click on 192.168.2.110 and select "Remove"
• In the admin interface, make sure that the new node disappears from the cluster ring. This operation may take a few minutes
• Note! Do not start Sitevision again on 192.168.2.110 without emptying data/cassandra

Change the IP address on a cluster node

In the example, the 192.68.2.110 node should change IP address to 192.168.2.111

• Go to the admin interface and right-click on 192.168.2.110 and select "Shutdown"
  
• Wait until the node is down and red
• Change IP address on the machine from 192.68.2.110 to 192.168.2.111
• Add the following in custom/conf/sitevision.properties on 192.168.2.111
  • sitevision.cassandra.listen_address=192.168.2.111
• Go to the admin interface and click on "Allow new node" and enter 192.168.2.111. Also, choose to replace the 192.168.2.110 node. Click ok
• Start Sitevision on 192.168.2.111
• In the admin interface, make sure that the node appears in the cluster ring

Change listen_address from localhost to "real" IP address

In the example, the 192.168.2.110 node should change

• Change the following in custom/conf/sitevision.properties on 192.168.2.110
  • sitevision.cassandra.listen_address=192.168.2.110
• Restart Sitevision