func reduceCommonDataDir(dataDirs []string, writeQuorum int) (dataDir string) {
	dataDirsCount := make(map[string]int)
	for _, ddir := range dataDirs {
		dataDirsCount[ddir]++
	}

	max := 0
	for ddir, count := range dataDirsCount {
		if max < count {
			max = count
			dataDir = ddir
		}
	}

	if max >= writeQuorum {
		return dataDir
	}

	return ""
}

	// Setup
	var driverName, volID string
	dataDir := filepath.Dir(deviceMountPath)
	data, err := loadVolumeData(dataDir, volDataFileName)
	if err == nil {
		driverName = data[volDataKey.driverName]
		volID = data[volDataKey.volHandle]
	} else {
		if errors.Is(err, os.ErrNotExist) {
			klog.V(4).Info(log("attacher.UnmountDevice skipped because volume data file [%s] does not exist", dataDir))
			return nil
		}

						err = msgp.WrapError(err, "ObjectV2")
						return
					}
					switch msgp.UnsafeString(field) {
					case "DDir":
						err = dc.ReadExactBytes((z.ObjectV2.DataDir)[:])
						if err != nil {
							err = msgp.WrapError(err, "ObjectV2", "DataDir")
							return
						}
					default:
						err = dc.Skip()
						if err != nil {
							err = msgp.WrapError(err, "ObjectV2")
							return
						}

	versionID = fi.VersionID
	if versionID == "" {
		versionID = nullVersionID
	}
	fi.Data = inData.find(versionID)
	if len(fi.Data) == 0 {
		// PR #11758 used DataDir, preserve it
		// for users who might have used master
		// branch
		fi.Data = inData.find(fi.DataDir)
	}
	return fi, nil
}

// hashDeterministicString will return a deterministic hash for the map values.

// Removes part.meta given by partName belonging to a multipart upload from minioMetaBucket
func (er erasureObjects) removePartMeta(bucket, object, uploadID, dataDir string, partNumber int) {
	uploadIDPath := er.getUploadIDDir(bucket, object, uploadID)
	curpartPath := pathJoin(uploadIDPath, dataDir, fmt.Sprintf("part.%d", partNumber))
	storageDisks := er.getDisks()

	g := errgroup.WithNErrs(len(storageDisks))
	for index, disk := range storageDisks {

	}

	// Check that all directories have been cleaned
	// Check that all metadata / staging / publish directories were deleted
	dataDir := getVolumeDeviceDataDir(pv.ObjectMeta.Name, plug.host)
	if _, err := os.Stat(dataDir); err == nil {
		t.Errorf("volume publish data directory %s was not deleted", dataDir)
	}
	devDir := getVolumeDeviceDataDir(pv.ObjectMeta.Name, plug.host)
	if _, err := os.Stat(devDir); err == nil {

func SetDefaults_Etcd(obj *ClusterConfiguration) {
	if obj.Etcd.External == nil && obj.Etcd.Local == nil {
		obj.Etcd.Local = &LocalEtcd{}
	}
	if obj.Etcd.Local != nil {
		if obj.Etcd.Local.DataDir == "" {
			obj.Etcd.Local.DataDir = DefaultEtcdDataDir
		}
	}
}

// SetDefaults_JoinConfiguration assigns default values to a regular node
func SetDefaults_JoinConfiguration(obj *JoinConfiguration) {

	}
	verifyFilePermissions(t, updatedFiles, wantUpdateFiles)
}

func TestRunEtcdAsNonRoot(t *testing.T) {
	cfg := &kubeadm.ClusterConfiguration{
		Etcd: kubeadm.Etcd{
			Local: &kubeadm.LocalEtcd{
				DataDir: "/var/lib/etcd/data",
			},
		},
	}
	pod := ComponentPod(v1.Container{Name: "etcd"}, nil, nil)
	var runAsUser, runAsGroup int64 = 1000, 1001
	updatedFiles := map[string]ownerAndPermissions{}

	cert, key, err := cert.GenerateSelfSignedCertKey("k8s.io", nil, nil)
	if err != nil {
		return "", "", nil
	}

	var certKeyPathFn = func(dataDir string) (string, string, string) {
		outputDir := filepath.Join(certDir, dataDir)
		return outputDir, filepath.Join(outputDir, "kubelet.cert"), filepath.Join(outputDir, "kubelet.key")
	}

	writeDir, writeCertPath, writeKeyPath := certKeyPathFn("identity.tmp")

		Volume:           "volume",
		Name:             "object-name",
		VersionID:        "00000000-0000-0000-0000-000000000001",
		IsLatest:         true,
		Deleted:          false,
		TransitionStatus: "",
		DataDir:          "bffea160-ca7f-465f-98bc-9b4f1c3ba1ef",
		XLV1:             false,
		ModTime:          time.Now(),
		Size:             0,
		Mode:             0,
		Metadata:         nil,
		Parts:            nil,