It would be great to have a way to safely generate unique id's for node names, with oak configured in a cluster configuration.
This is useful for creating unique slug names for documents, and ensuring unique names for node siblings, or node names repository wide.
It could be implemented as a sequence generator, or similar to how mongodb generates object ids; https://docs.mongodb.org/manual/reference/object-id/.
With the older jackrabbit implementation it is possible to have a sequence guaranteed to provide unique id's, using enforceable locks. With oak theres no such guarantee when used in a clustered configuration.