Class OperationNotSupportedInCurrentConnectionStateError
Gets thrown if an operation of RaftController is called while the
controller is not in an appropriate connection state (e.g. propose() is
called before the controller has connected to the Raft cluster).
Gets thrown if an operation of
RaftControlleris called while the controller is not in an appropriate connection state (e.g.propose()is called before the controller has connected to the Raft cluster).