How to deactivate cluster synchronization of configuration files?

Question

How can I deactivate the cluster synchronisation of configuration files? So that I can use different configurations on my cluster nodes.

Answer

Procedure to deactivate the synchronisation of configuration files in cluster:

1. Start all the cluster nodes if the cluster is stopped, procedure is done on a started Cluster.
2. On one node only:
   1. edit /digital-factory-data/karaf/etc/org.apache.karaf.cellar.groups.cfg
   2. set default.config.sync to disabled (default.config.sync = cluster)
   3. wait for the modification to be effective (a log is displayed when it's done)
3. On all cluster nodes: (repeat step 3 on all cluster nodes)
   1. go to /digital-factory-data/karaf/etc
   2. use the cmd touch on all the config files that use factories (config file that contains a "-" separator in the last part, like: org.jahia.modules.graphql.provider-default.cfg)

Now all configuration will be local to the Jahia nodes, and configuration synchronisation is completely disabled.