Configuring node-identifier property in EAP

Issue

• server.log includes below warning at server start:

  WARN  [org.jboss.as.txn] (ServerService Thread Pool -- 54) JBAS010153: Node identifier property is set to the default value. Please make sure it is unique.
  

  WARN  [org.jboss.as.txn] (ServerService Thread Pool -- 50) WFLYTX0013: The node-identifier attribute on the /subsystem=transactions is set to the default value. This is a danger for environments running multiple servers. Please make sure the attribute value is unique.
  

• Setting unique values for node-identifier on each of my clustered nodes in domain mode
• How can I make each managed server use a unique node identifier if they all get their configuration from the same domain.xml file?
• Where is the node-identifier property set?
• There is no restriction of JVM length at the time of instance creation, we have created more than 100+ JVM's,