n.LastMinute = n.LastMinute.merge(rt.LastMinute)
	n.LastMinute = n.LastMinute.merge(o.LastMinute)
	n.LastHour = n.LastHour.merge(rt.LastHour)
	n.LastHour = n.LastHour.merge(o.LastHour)
	n.ErrCounts = make(map[string]int)
	for k, v := range rt.ErrCounts {
		n.ErrCounts[k] = v
	}
	for k, v := range o.ErrCounts {
		n.ErrCounts[k] += v
	}
	return n

		zb0001--
		field, err = dc.ReadMapKeyPtr()
		if err != nil {
			err = msgp.WrapError(err)
			return
		}
		switch msgp.UnsafeString(field) {
		case "LastHour":
			err = z.LastHour.DecodeMsg(dc)
			if err != nil {
				err = msgp.WrapError(err, "LastHour")
				return
			}
		case "SinceUptime":
			var zb0002 uint32
			zb0002, err = dc.ReadMapHeader()
			if err != nil {

			stats := s.ReplicationStats
			if stats.hasReplicationUsage() {
				for arn, stat := range stats.Stats {
					m.Set(bucketReplLastHrFailedBytes, float64(stat.Failed.LastHour.Bytes), labels...)
					m.Set(bucketReplLastHrFailedCount, float64(stat.Failed.LastHour.Count), labels...)
					m.Set(bucketReplLastMinFailedBytes, float64(stat.Failed.LastMinute.Bytes), labels...)

					Value:          float64(stat.Failed.LastHour.Bytes),
					VariableLabels: map[string]string{"endpoint": stat.Endpoint},
				})
				ml = append(ml, MetricV2{
					Description:    getRepFailedOperationsLastHourMD(clusterMetricNamespace),
					Value:          stat.Failed.LastHour.Count,
					VariableLabels: map[string]string{"endpoint": stat.Endpoint},
				})