func parseCopyPartRangeSpec(rangeString string) (hrange *HTTPRangeSpec, err error) {
	hrange, err = parseRequestRangeSpec(rangeString)
	if err != nil {
		return nil, err
	}
	if hrange.IsSuffixLength || hrange.Start < 0 || hrange.End < 0 {
		return nil, errInvalidRange
	}
	return hrange, nil
}

// checkCopyPartRangeWithSize adds more check to the range string in case of

		if start < 0 {
			start = 0
		}
	}
	return start, length, nil
}

// Parse a HTTP range header value into a HTTPRangeSpec
func parseRequestRangeSpec(rangeString string) (hrange *HTTPRangeSpec, err error) {
	// Return error if given range string doesn't start with byte range prefix.
	if !strings.HasPrefix(rangeString, byteRangePrefix) {

// Add add pool endpoints
func (l *EndpointServerPools) Add(zeps PoolEndpoints) error {
	existSet := set.NewStringSet()
	for _, zep := range *l {
		for _, ep := range zep.Endpoints {
			existSet.Add(ep.String())
		}
	}
	// Validate if there are duplicate endpoints across serverPools
	for _, ep := range zeps.Endpoints {
		if existSet.Contains(ep.String()) {
			return fmt.Errorf("duplicate endpoints found")
		}
	}

	compress.SetCompressionConfig(newCfg, cfg.Compression)

	for k, args := range cfg.Notify.AMQP {
		notify.SetNotifyAMQP(newCfg, k, args)
	}
	for k, args := range cfg.Notify.Elasticsearch {
		notify.SetNotifyES(newCfg, k, args)
	}
	for k, args := range cfg.Notify.Kafka {
		notify.SetNotifyKafka(newCfg, k, args)
	}
	for k, args := range cfg.Notify.MQTT {
		notify.SetNotifyMQTT(newCfg, k, args)
	}

		},
		{
			// 11MiB > 10 MiB -> out of range from right
			objSize: 11 << 20,
			sizeFilter: BatchJobSizeFilter{
				UpperBound: 10 << 20,
				LowerBound: 1 << 20,
			},
			want: false,
		},
		{
			//  2MiB < 10MiB -> in range
			objSize: 2 << 20,
			sizeFilter: BatchJobSizeFilter{
				UpperBound: 10 << 20,
			},
			want: true,
		},
		{
			//  2MiB > 1MiB -> in range
			objSize: 2 << 20,

					// Expire 50%
					toUnLock := make([]dsync.LockArgs, 0, locks*readers)
					for k, v := range l.lockMap {
						for _, lock := range v {
							if rng.Intn(2) == 0 {
								toUnLock = append(toUnLock, dsync.LockArgs{Resources: []string{k}, UID: lock.UID})
							}
						}
					}
					start := time.Now()
					for _, lock := range toUnLock {
						ok, err := l.ForceUnlock(context.Background(), lock)

			return nil, err
		}
	}

	for _, v := range healBuckets {
		bi := BucketInfo{
			Name:    v.Name,
			Created: v.Created,
		}
		if vi, ok := deletedBuckets[v.Name]; ok {
			bi.Deleted = vi.Created
		}
		buckets = append(buckets, bi)
	}

	for _, v := range deletedBuckets {
		if _, ok := healBuckets[v.Name]; !ok {
			buckets = append(buckets, BucketInfo{

	for _, versions := range diskVersions {
		if len(versions) > 0 {
			diskVersionsCount[binary.BigEndian.Uint64(versions)]++
		}
	}

	var commonVersions uint64
	max := 0
	for versions, count := range diskVersionsCount {
		if max < count {
			max = count
			commonVersions = versions
		}
	}

	if max >= writeQuorum {
		for _, versions := range diskVersions {

// parse size from content-range header
func parseSizeFromContentRange(h http.Header) (sz int64, err error) {
	cr := h.Get(xhttp.ContentRange)
	if cr == "" {
		return sz, fmt.Errorf("Content-Range not set")
	}
	parts := contentRangeRegexp.FindStringSubmatch(cr)
	if len(parts) != 4 {
		return sz, fmt.Errorf("invalid Content-Range header %s", cr)
	}
	if parts[3] == "*" {
		return -1, nil

	for name, value := range httpStats.CurrentS3Requests.APIStats {
		m.Set(apiRequestsInFlightTotal, float64(value), "name", name, "type", "s3")
	}
	for name, value := range httpStats.TotalS3Requests.APIStats {
		m.Set(apiRequestsTotal, float64(value), "name", name, "type", "s3")
	}
	for name, value := range httpStats.TotalS3Errors.APIStats {