if len(s.Connections) == 0 {
		panic("attempting to create load balancer with zero connections")
	}

	conn := newLBConnection("LeastRequestLB", s.Connections)

	if conn.AllWeightsEqual() {
		return newUnweightedLeastRequest(conn)
	}

	return newWeightedLeastRequest(conn, s.ActiveRequestBias)
}

type unweightedLeastRequest struct {
	*weightedConnections
	r *rand.Rand
}