// By default, empty data usage cache
	*d = dataUsageCache{}

	load := func(name string, timeout time.Duration) (bool, error) {
		// Abandon if more than time.Minute, so we don't hold up scanner.
		// drive timeout by default is 2 minutes, we do not need to wait longer.
		ctx, cancel := context.WithTimeout(ctx, timeout)
		defer cancel()

		enableHTTP2, err = config.ParseBool(v)
		if err != nil {
			return args, err
		}
	}
	httpSettings.EnableHTTP2 = enableHTTP2
	transport := httpSettings.NewHTTPTransportWithTimeout(time.Minute)

	args = Args{
		URL:         u,
		AuthToken:   getCfg(AuthToken),
		Transport:   transport,
		CloseRespFn: closeRespFn,
	}
	if err = args.Validate(); err != nil {
		return args, err
	}

)

const (
	jwtAlgorithm = "Bearer"

	// Default JWT token for web handlers is one day.
	defaultJWTExpiry = 24 * time.Hour

	// Inter-node JWT token expiry is 15 minutes.
	defaultInterNodeJWTExpiry = 15 * time.Minute
)

var (
	errInvalidAccessKeyID = errors.New("The access key ID you provided does not exist in our records")
	errAccessKeyDisabled  = errors.New("The access key you provided is disabled")

		allDriveLabels...)
	driveWaitingIOMD = NewGaugeMD(driveWaitingIO,
		"Total waiting I/O operations on a drive", allDriveLabels...)
	driveAPILatencyMD = NewGaugeMD(driveAPILatencyMicros,
		"Average last minute latency in µs for drive API storage operations",
		append(allDriveLabels, apiL)...)
	driveHealingMD = NewGaugeMD(driveHealing,
		"Is it healing?", allDriveLabels...)
	driveOnlineMD = NewGaugeMD(driveOnline,

}

// Update replication upload latency with a new value
func (rl *ReplicationLatency) update(size int64, duration time.Duration) {
	rl.UploadHistogram.Add(size, duration)
}

// ReplicationLastMinute has last minute replication counters
type ReplicationLastMinute struct {
	LastMinute lastMinuteLatency
}

func (rl ReplicationLastMinute) merge(other ReplicationLastMinute) (nl ReplicationLastMinute) {

	clientPingInterval = 15 * time.Second

	// Deadline for single (non-streaming) requests to complete.
	// Used if no deadline is provided on context.
	defaultSingleRequestTimeout = time.Minute
)

var internalByteBuffer = sync.Pool{
	New: func() any {
		m := make([]byte, 0, defaultBufferSize)
		return &m
	},
}

var internal32KByteBuffer = sync.Pool{
	New: func() any {

			writeErrorResponse(r.Context(), w, apiErr, r.URL)
		}
		return
	}

	// Verify if KMS is reachable if its configured
	if GlobalKMS != nil {
		ctx, cancel := context.WithTimeout(r.Context(), time.Minute)
		defer cancel()

		if _, err := GlobalKMS.GenerateKey(ctx, "", kms.Context{"healthcheck": ""}); err != nil {
			switch r.Method {
			case http.MethodHead:
				apiErr := toAPIError(r.Context(), err)

			break
		}
		replLogOnceIf(context.Background(), fmt.Errorf("unable to initialize site replication subsystem: (%w)", err), "site-relication-init")

		duration := time.Duration(r.Float64() * float64(time.Minute))
		if duration < time.Second {
			// Make sure to sleep at least a second to avoid high CPU ticks.
			duration = time.Second
		}
		time.Sleep(duration)
	}
	c.RLock()
	defer c.RUnlock()

          "expr": "sum by (bucket) (rate(minio_bucket_replication_last_minute_failed_bytes{job=\"$scrape_jobs\"}[$__rate_interval]))",
          "interval": "1m",
          "intervalFactor": 2,
          "legendFormat": "Last Minute Failed Size [{{bucket}}]",
          "refId": "A"
        }
      ],
      "title": "Last Minute Failed Size",
      "type": "timeseries"
    },
    {

	// HelpDrive is help for drive
	HelpDrive = config.HelpKVS{
		config.HelpKV{
			Key:         MaxTimeout,
			Type:        "string",
			Description: "set per call max_timeout for the drive, defaults to 2 minutes",
			Optional:    true,
		},
	}