Installation and Upgrade > Advanced Deployment Considerations > Installing and Configuring a Cluster Windchill Environment > Server Cluster Configuration Overview > Configuring the Windchill Environment for Clustering > Configuring a Dedicated Cluster Master > Example Properties
  
Example Properties
All cluster nodes require the following properties (found in the wt.properties file):
wt.rmi.server.hostname=A
wt.cache.master.slaveHosts=B, C, D
wt.cache.master.hostname=D
In the example diagram, only host D is allowed to be a master cache. If you have multiple hosts that you want to allow as the master cache, those host names can be added to the wt.cache.master.hostname property value.