for {
		select {
		case <-ctx.Done():
			return
		case <-licenseUpdateTimer.C:

			if globalSubnetConfig.Registered() {
				performLicenseUpdate(ctx, objAPI)
			}

			// Reset the timer for next cycle.
			licenseUpdateTimer.Reset(licUpdateCycle)
		}
	}
}

func performLicenseUpdate(ctx context.Context, objectAPI ObjectLayer) {
	// the subnet license renewal api renews the license only

	// Cached value from Bitrot field
	cache struct {
		// -1: bitrot enabled, 0: bitrot disabled, > 0: bitrot cycle
		bitrotCycle time.Duration
	}
}

// BitrotScanCycle returns the configured cycle for the scanner healing
// -1 for not enabled
//
//	0 for contiunous bitrot scanning
//
// >0 interval duration between cycles
func (opts Config) BitrotScanCycle() (d time.Duration) {
	configMutex.RLock()
	defer configMutex.RUnlock()

// was collected since the server started, and the sum,
// average and max values across the same.
type ResourceMetric struct {
	Name   MetricName
	Labels map[string]string

	// value captured in current cycle
	Current float64

	// Used when system provides cumulative (since uptime) values
	// helps in calculating the current value by comparing the new
	// cumulative value with previous one
	Cumulative float64

	}
	cfg.MaxWait, err = time.ParseDuration(maxWait)
	if err != nil {
		return err
	}
	cycle := env.Get(EnvCycle, kvs.GetWithDefault(Cycle, DefaultKVS))
	if cycle == "" {
		cycle = "1m"
	}
	cfg.Cycle, err = time.ParseDuration(cycle)
	if err != nil {
		return err
	}
	return nil

	minSleep time.Duration

	// cycle will be closed
	cycle chan struct{}

	// isScanner should be set when this is used by the scanner
	// to record metrics.
	isScanner bool
}

// newDynamicSleeper
func newDynamicSleeper(factor float64, maxWait time.Duration, isScanner bool) *dynamicSleeper {
	return &dynamicSleeper{
		factor:    factor,
		cycle:     make(chan struct{}),
		maxSleep:  maxWait,

:""}]},"scanner":{"_":[{"key":"speed","value":"default"},{"key":"idle_speed","value":""},{"key":"alert_excess_versions","value":"100"},{"key":"alert_excess_folders","value":"50000"},{"key":"delay","value":""},{"key":"max_wait","value":""},{"key":"cycle","value":""}]},"site":{"_":[{"key":"name","value":""},{"key":"region","value":""}]},"storage_class":{"_":[{"key":"standard","value":"EC:5"},{"key":"rrs","value":"EC:1"},{"key":"optimize","value":"availability"},{"key":"inline_block","value":""}]},...

			errs = append(errs, fmt.Errorf("Unable to apply scanner config: %w", err))
		} else {
			// update dynamic scanner values.
			scannerIdleMode.Store(scannerCfg.IdleMode)
			scannerCycle.Store(scannerCfg.Cycle)
			scannerExcessObjectVersions.Store(scannerCfg.ExcessVersions)
			scannerExcessFolders.Store(scannerCfg.ExcessFolders)
			configLogIf(ctx, scannerSleeper.Update(scannerCfg.Delay, scannerCfg.MaxWait))
		}

	}
	createUsageTestFiles(t, base, bucket, files)
	err = os.RemoveAll(filepath.Join(base, bucket, "dir1/dira/dirasub/dcfile"))
	if err != nil {
		t.Fatal(err)
	}
	// Changed dir must be picked up in this many cycles.
	for i := 0; i < dataUsageUpdateDirCycles; i++ {
		got, err = scanDataFolder(context.Background(), nil, base, got, getSize, 0, weSleep)
		got.Info.NextCycle++
		if err != nil {
			t.Fatal(err)
		}
	}

	// were changes to the in-memory cache we should wait for the next
	// cycle until we can safely update the in-memory cache.
	//
	// An in-memory cache must be replaced only if we know for sure that the
	// values loaded from disk are not stale. They might be stale if the
	// cached.updatedAt is more recent than the refresh cycle began.
	if cache.updatedAt.Before(loadedAt) {

	locker := objAPI.NewNSLock(minioMetaBucket, "callhome/runCallhome.lock")
	lkctx, err := locker.GetLock(ctx, callhomeLeaderLockTimeout)
	if err != nil {
		// lock timedout means some other node is the leader,
		// cycle back return 'true'
		return true
	}

	ctx = lkctx.Context()
	defer locker.Unlock(lkctx)

	callhomeTimer := time.NewTimer(globalCallhomeConfig.FrequencyDur())
	defer callhomeTimer.Stop()

	for {