How about Force change cluster's elected master node

[DavidTurner]

@luyuncheng

I wonder how do you reduce the cluster blocking time when handle a leader must step down as it need to reboot for maintenance not network partitions.

I don't understand the question. If the leader is shut down then a new leader is elected very quickly already: a few seconds in 6.x and a few hundred milliseconds in 7.x.