}
	if isDistErasure {
		return &nsMutex
	}
	nsMutex.lockMap = make(map[string]*nsLock)
	return &nsMutex
}

// nsLock - provides primitives for locking critical namespace regions.
type nsLock struct {
	ref int32
	*lsync.LRWMutex
}

// nsLockMap - namespace lock map, provides primitives to Lock,
// Unlock, RLock and RUnlock.
type nsLockMap struct {
	// Indicates if namespace is part of a distributed setup.

}

// DefaultRetention - default retention configuration.
type DefaultRetention struct {
	XMLName xml.Name `xml:"DefaultRetention"`
	Mode    RetMode  `xml:"Mode"`
	Days    *uint64  `xml:"Days"`
	Years   *uint64  `xml:"Years"`
}

// Maximum support retention days and years supported by AWS S3.
const (
	// This tested by using `mc lock` command
	maximumRetentionDays  = 36500

	// helps in calculating the current value by comparing the new
	// cumulative value with previous one
	Cumulative float64

	Max   float64
	Avg   float64
	Sum   float64
	Count uint64
}

func init() {
	interval := fmt.Sprintf("%ds", int(resourceMetricsCollectionInterval.Seconds()))
	resourceMetricsHelpMap = map[MetricName]string{

	Topic       string    `json:"topic"`
	TLS         struct {
		Enable     bool `json:"enable"`
		SkipVerify bool `json:"skipVerify"`
	} `json:"tls"`
	QueueDir   string `json:"queueDir"`
	QueueLimit uint64 `json:"queueLimit"`
}

// Validate NSQArgs fields
func (n NSQArgs) Validate() error {
	if !n.Enable {
		return nil
	}

	if n.NSQDAddress.IsEmpty() {
		return errors.New("empty nsqdAddress")
	}

}

func getMajorMinor(path string) (string, error) {
	var stat syscall.Stat_t
	if err := syscall.Stat(path, &stat); err != nil {
		return "", fmt.Errorf("unable to stat `%s`: %w", path, err)
	}

	devID := uint64(stat.Dev)
	major := (devID & 0x00000000000fff00) >> 8
	major |= (devID & 0xfffff00000000000) >> 32
	minor := (devID & 0x00000000000000ff) >> 0
	minor |= (devID & 0x00000ffffff00000) >> 12

	LookupHost  LookupHost  // Custom lookupHost, is nil on containerized deployments.
	DialTimeout time.Duration

	// TLS Settings
	RootCAs          *x509.CertPool
	CipherSuites     []uint16
	CurvePreferences []tls.CurveID

	// HTTP2
	EnableHTTP2 bool

	// TCP Options
	TCPOptions TCPOptions
}

func (s ConnSettings) getDefaultTransport(maxIdleConnsPerHost int) *http.Transport {

		exp             any
		expectedFailure bool
	}{
		{"", true},
		{"-1", true},
		{"1574812326", false},
		{1574812326, false},
		{int64(1574812326), false},
		{int(1574812326), false},
		{uint(1574812326), false},
		{uint64(1574812326), false},
		{json.Number("1574812326"), false},
		{1574812326.000, false},
		{time.Duration(3) * time.Minute, false},
	}

	for _, testCase := range testCases {

)

// label constants
const (
	driveL      = "drive"
	poolIndexL  = "pool_index"
	setIndexL   = "set_index"
	driveIndexL = "drive_index"

	apiL = "api"

	sectorSize = uint64(512)
	kib        = float64(1 << 10)

	driveHealthOffline = float64(0)
	driveHealthOnline  = float64(1)
	driveHealthHealing = float64(2)
)

var allDriveLabels = []string{driveL, poolIndexL, setIndexL, driveIndexL}

			line: sf.line,
			col:  sf.col,
			msg:  "invalid batch-job size filter",
		}
	}
	return nil
}

// BatchJobSize supports humanized byte values in yaml files type BatchJobSize uint64
type BatchJobSize int64

// UnmarshalYAML to parse humanized byte values
func (s *BatchJobSize) UnmarshalYAML(unmarshal func(any) error) error {
	var batchExpireSz string
	err := unmarshal(&batchExpireSz)

	Endpoint   xnet.URL        `json:"endpoint"`
	AuthToken  string          `json:"authToken"`
	Transport  *http.Transport `json:"-"`
	QueueDir   string          `json:"queueDir"`
	QueueLimit uint64          `json:"queueLimit"`
	ClientCert string          `json:"clientCert"`
	ClientKey  string          `json:"clientKey"`
}

// Validate WebhookArgs fields
func (w WebhookArgs) Validate() error {
	if !w.Enable {