The main procedure is described in our documentation at https://academy.jahia.com/documentation/digital-experience-manager/7.1/technical/configuration-and-fine-tuning/faq
However and as the pre-production environment already exists, some precautions have to be followed:
digital-factory-config
folder has not to be copied as the pre-production contains a file jahia.node.properties
and possibly other personalized properties files.
2016-10-11 09:42:39,295: WARN [TCP] - JGRP000032: null: no physical address for e3b8cb20-10d5-a453-c823-e63a55a1bc48, dro
The table JGROUPSPING must be deleted: DELETE FROM JGROUPSPING
tomcat
/temp
and the tomcat/work
folders must be flushed in the pre-production environment.