27.5.3. Configure Multiple Site Masters (Library Mode)

Procedure 27.5. Configure Multiple Site Masters (Library Mode)

1. Configure Cross-Datacenter Replication

   Configure Cross-Datacenter Replication in JBoss Data Grid. Use the instructions in Section 27.3.2.1, “Configure Cross-Datacenter Replication Declaratively” for an XML configuration or the instructions in Section 27.3.2.2, “Configure Cross-Datacenter Replication Programmatically” for a programmatic configuration.

2. Add the Contents of the Configuration File

   Add the can_become_site_master and max_site_masters parameters to the configuration as follows:

   <config> 
       ... 
       <relay.RELAY2 site="LON" 
                 config="relay.xml" 
                 relay_multicasts="false"
                 can_become_site_master="true" 
                 max_site_masters="16"/>
   </config>
   

   Set the max_site_masters value to the number of nodes in the cluster to make all nodes masters.