According to dirsrv docs  referential integrity should only be
enabled on a single server in a MMR scenario.
My topology is:
ROA <-- MA <--> MB --> ROB
Where RO is a readonly, M is a master. Arrows indicate data flow
Updates to the DS are done through MA or MB.
Should the advice of enabling on only a single host still be held true?
What are the potential issues of enabling this on multiple hosts? In the
future what would need to change in the plugin to support enabling on
multiple hosts if not already possible?