// If an error is returned the returned metadata will be default initialized.
func readBucketMetadata(ctx context.Context, api ObjectLayer, name string) (BucketMetadata, error) {
	if name == "" {
		internalLogIf(ctx, errors.New("bucket name cannot be empty"), logger.WarningKind)
		return BucketMetadata{}, errInvalidArgument
	}
	b := newBucketMetadata(name)
	configFile := path.Join(bucketMetaPrefix, name, bucketMetadataFile)

	logger.LogOnceIf(ctx, "bootstrap", err, id, errKind...)
}

func dnsLogIf(ctx context.Context, err error, errKind ...interface{}) {
	logger.LogIf(ctx, "dns", err, errKind...)
}

func internalLogIf(ctx context.Context, err error, errKind ...interface{}) {
	logger.LogIf(ctx, "internal", err, errKind...)
}

func internalLogOnceIf(ctx context.Context, err error, id string, errKind ...interface{}) {

	p, err := sys.Get(args.BucketName)
	if err == nil {
		return p.IsAllowed(args)
	}

	// Log unhandled errors.
	if _, ok := err.(BucketPolicyNotFound); !ok {
		internalLogIf(GlobalContext, err, logger.WarningKind)
	}

	// As policy is not available for given bucket name, returns IsOwner i.e.
	// operation is allowed only for owner.
	return args.IsOwner
}

	}
	c.Algorithm = BitrotAlgorithmFromString(info.Algorithm)
	c.Hash = sum
	if _, err = fmt.Sscanf(info.Name, "part.%d", &c.PartNumber); err != nil {
		return err
	}

	if !c.Algorithm.Available() {
		internalLogIf(GlobalContext, errBitrotHashAlgoInvalid)
		return errBitrotHashAlgoInvalid
	}
	return nil
}

// constant and shouldn't be changed.
const (
	legacyDataDir = "legacy"
)

	// of profiling data of all nodes
	zipWriter := zip.NewWriter(writer)
	defer zipWriter.Close()

	// Start by embedding cluster info.
	if b := getClusterMetaInfo(ctx); len(b) > 0 {
		internalLogIf(ctx, embedFileInZip(zipWriter, "cluster.info", b, 0o600))
	}

	// Profiles can be quite big, so we limit to max 16 concurrent downloads.
	ng := WithNPeersThrottled(len(sys.peerClients), 16)
	var writeMu sync.Mutex

		if partOffset < part.Size {
			return partIndex, partOffset, nil
		}
		// Continue to towards the next part.
		partOffset -= part.Size
	}
	internalLogIf(ctx, InvalidRange{})
	// Offset beyond the size of the object return InvalidRange.
	return 0, 0, InvalidRange{}
}

		if !errors.Is(err, os.ErrNotExist) {
			internalLogIf(GlobalContext, fmt.Errorf("unable to read %s: %w", healingFile, err))
		}
		return nil
	}
	if len(b) == 0 {
		internalLogIf(GlobalContext, fmt.Errorf("%s is empty", healingFile))
		// 'healing.bin' might be truncated
		return nil
	}
	h := newHealingTracker()
	_, err = h.UnmarshalMsg(b)
	internalLogIf(GlobalContext, err)
	return h
}

	sort.Strings(peers)
	hosts := make([]*xnet.Host, len(peers))
	for i, hostStr := range peers {
		if hostStr == localPeer {
			continue
		}
		host, err := xnet.ParseHost(hostStr)
		if err != nil {
			internalLogIf(GlobalContext, err)
			continue
		}
		hosts[i] = host
	}

	return hosts
}

// peers will return all peers, including local.
// The local peer is returned as a separate string.

		ctx, cancel := context.WithTimeout(context.Background(), time.Second)
		defer cancel()
		transport, err := s.NewHTTPTransportWithClientCerts(ctx, clientCert, clientKey)
		if err != nil {
			internalLogIf(ctx, fmt.Errorf("Unable to load client key and cert, please check your client certificate configuration: %w", err))
		}
		if transport == nil {
			// Client certs are not readable return default transport.

	b, err := json.Marshal(info)
	if err != nil {
		bugLogIf(ctx, err)
		return
	}
	// Get last healing information
	err = saveConfig(ctx, objAPI, backgroundHealInfoPath, b)
	if err != nil {
		internalLogIf(ctx, err)
	}
}

// runDataScanner will start a data scanner.
// The function will block until the context is canceled.
// There should only ever be one scanner running per cluster.