If you want to change your node names you can follow this steps:

1- Stop nodes except deployment manager

2 – Execute following command at /bin directory:

./renameNode.sh dmgr01 16003 node1 -username wpsbind -password wpsbind -logfile (renameNode.sh dmgr_host dmgr_port node_name ) changenode.txt

3- Execute following command at /ConfigEngine directory:

/ConfigEngine.sh rename-node-in-cell-registry -DWasPassword=wpsbind -DpreviousNodeName=node1 (./ConfigEngine.sh rename-node-in-cell-registry -DWasPassword=password -DpreviousNodeName=oldNodeName )

4- Edit deployment.xml files with new nodename under /config/application/ at dmgr machine