Currently in 1.0, the master/slave is setup at the end of postConfigure AND will also be resetup when a restartsystem or system servers are rebooted.
In 1.1, this logic is only in ProcMgr for startsystem.
It is recommended that this not be setup everything the system is restarted. I did a reboot test and the master/slave setup remain when I took out the step in ProcMgr to set it up on startsystem.
So for 1.0 and 1.1, it should only be initially setup in postConfigure. and removed from the startsystem in ProcMgr. It will still be called by procmgr when the master node needs to be changed.