}
		if len(params) >= 2 {
			apiErr.Object = decodeDirObject(params[1])
		}
		if len(params) >= 3 {
			apiErr.VersionID = params[2]
		}
		return apiErr
	case errMethodNotAllowed.Error():
		apiErr := MethodNotAllowed{}
		if len(params) >= 1 {
			apiErr.Bucket = params[0]
		}
		if len(params) >= 2 {
			apiErr.Object = decodeDirObject(params[1])
		}
		return apiErr
	case errFileNotFound.Error():

	params := []string{args.ConnectionString}
	if args.ConnectionString == "" {
		params = []string{}
		if !args.Host.IsEmpty() {
			params = append(params, "host="+args.Host.String())
		}
		if args.Port != "" {
			params = append(params, "port="+args.Port)
		}
		if args.Username != "" {
			params = append(params, "username="+args.Username)
		}
		if args.Password != "" {

func (s *storageRESTServer) ReadVersionHandlerWS(params *grid.MSS) (*FileInfo, *grid.RemoteErr) {
	if !s.checkID(params.Get(storageRESTDiskID)) {
		return nil, grid.NewRemoteErr(errDiskNotFound)
	}
	origvolume := params.Get(storageRESTOrigVolume)
	volume := params.Get(storageRESTVolume)
	filePath := params.Get(storageRESTFilePath)
	versionID := params.Get(storageRESTVersionID)

) (res RenameDataResp, err error) {
	params := RenameDataHandlerParams{
		DiskID:    *client.diskID.Load(),
		SrcVolume: srcVolume,
		SrcPath:   srcPath,
		DstPath:   dstPath,
		DstVolume: dstVolume,
		FI:        fi,
		Opts:      opts,
	}
	var resp *RenameDataResp
	if fi.Data == nil {
		resp, err = storageRenameDataRPC.Call(ctx, client.gridConn, &params)
	} else {

	cred, _, _ = getReqAccessKeyV4(r, region, serviceS3)
	if cred.AccessKey == "" {
		cred, _, _ = getReqAccessKeyV2(r)
	}
	return cred
}

// Extract request params to be sent with event notification.
func extractReqParams(r *http.Request) map[string]string {
	if r == nil {
		return nil
	}

	region := globalSite.Region
	cred := getReqAccessCred(r, region)

}

func getValidConfig(objAPI ObjectLayer) (config.Config, error) {
	return readServerConfig(GlobalContext, objAPI, nil)
}

// loadConfig - loads a new config from disk, overrides params
// from env if found and valid
// data is optional. If nil it will be loaded from backend.
func loadConfig(objAPI ObjectLayer, data []byte) error {
	bootstrapTraceMsg("load the configuration")

)

var gzipHandler = func() func(http.Handler) http.HandlerFunc {
	gz, err := gzhttp.NewWrapper(gzhttp.MinSize(1000), gzhttp.CompressionLevel(gzip.BestSpeed))
	if err != nil {
		// Static params, so this is very unlikely.
		logger.Fatal(err, "Unable to initialize server")
	}
	return gz
}()

// Set of handler options as bit flags
type hFlag uint8

const (

	case debugSetClientPingDuration:
		c.clientPingInterval = args[0].(time.Duration)
	case debugAddToDeadline:
		c.addDeadline = args[0].(time.Duration)
	case debugIsOutgoingClosed:
		// params: muxID uint64, isClosed func(bool)
		muxID := args[0].(uint64)
		resp := args[1].(func(b bool))
		mid, ok := c.outgoing.Load(muxID)
		if !ok || mid == nil {
			resp(true)
			return
		}

	}
	return madmin.TraceInfo{
		TraceType: madmin.TraceFTP,
		Time:      startTime,
		NodeName:  globalLocalNodeName,
		FuncName:  fmt.Sprintf("ftp USER=%s COMMAND=%s PARAM=%s ISLOGIN=%t, Source=%s", s.Sess.LoginUser(), s.Cmd, s.Param, s.Sess.IsLogin(), source),
		Duration:  time.Since(startTime),
		Path:      objPath,
		Error:     errStr,
	}
}

	if err != nil {
		errStr = err.Error()
	}
	return madmin.TraceInfo{
		TraceType: madmin.TraceFTP,
		Time:      startTime,
		NodeName:  globalLocalNodeName,
		FuncName:  fmt.Sprintf("sftp USER=%s COMMAND=%s PARAM=%s, Source=%s", user, s.Method, s.Filepath, source),
		Duration:  time.Since(startTime),
		Path:      s.Filepath,
		Error:     errStr,
	}
}

func (m *sftpMetrics) log(s *sftp.Request, user string) func(err error) {