Description:    err.Error(),
				HTTPStatusCode: http.StatusConflict,
			}

		// Tier admin API errors
		case errors.Is(err, madmin.ErrTierNameEmpty):
			apiErr = APIError{
				Code:           "XMinioAdminTierNameEmpty",
				Description:    err.Error(),
				HTTPStatusCode: http.StatusBadRequest,
			}
		case errors.Is(err, madmin.ErrTierInvalidConfig):
			apiErr = APIError{
				Code:           "XMinioAdminTierInvalidConfig",

`{"consoleAdmin":{"Version":"2012-10-17","Statement":[{"Effect":"Allow","Action":["admin:*"]},{"Effect":"Allow","Action":["kms:*"]},{"Effect":"Allow","Action":["s3:*"],"Resource":["arn:aws:s3:::*"]}]},"diagnostics":{"Version":"2012-10-17","Statement":[{"Effect":"Allow","Action":["admin:Prometheus","admin:Profiling","admin:ServerTrace","admin:ConsoleLog","admin:ServerInfo","admin:TopLocksInfo","admin:OBDInfo","admin:BandwidthMonitor"],"Resource":["arn:aws:s3:::*"]}]},"readonly":{"Version":"2012-10...

	sync.RWMutex
	arnRemotesMap map[string]arnTarget
	targetsMap    map[string][]madmin.BucketTarget
	hMutex        sync.RWMutex
	hc            map[string]epHealth
	hcClient      *madmin.AnonymousClient
	aMutex        sync.RWMutex
	arnErrsMap    map[string]arnErrs // map of ARN to error count of failures to get target
}

type latencyStat struct {
	lastmin lastMinuteLatency
	curr    time.Duration
	avg     time.Duration

}

func storageTrace(s storageMetric, startTime time.Time, duration time.Duration, path string, err string, custom map[string]string) madmin.TraceInfo {
	return madmin.TraceInfo{
		TraceType: madmin.TraceStorage,
		Time:      startTime,
		NodeName:  globalLocalNodeName,
		FuncName:  "storage." + s.String(),
		Duration:  duration,
		Path:      path,
		Error:     err,

		return
	}

	status := madmin.KMSStatus{
		Name:         stat.Name,
		DefaultKeyID: stat.DefaultKey,
		Endpoints:    make(map[string]madmin.ItemState, len(stat.Endpoints)),
	}
	for _, endpoint := range stat.Endpoints {
		status.Endpoints[endpoint] = madmin.ItemOnline // TODO(aead): Implement an online check for mTLS
	}

	resp, err := json.Marshal(status)

	globalOSSignalCh        = make(chan os.Signal, 1)

	// global Trace system to send HTTP request/response
	// and Storage/OS calls info to registered listeners.
	globalTrace = pubsub.New[madmin.TraceInfo, madmin.TraceType](8)

	// global Listen system to send S3 API events to registered listeners
	globalHTTPListen = pubsub.New[event.Event, pubsub.Mask](0)

	// global console system to send console logs to

type TraceParamsKey struct{}

// traceRequests adds request tracing to the connection.
func (c *Connection) traceRequests(p *pubsub.PubSub[madmin.TraceInfo, madmin.TraceType]) {
	c.trace = &tracer{
		Publisher: p,
		TraceType: madmin.TraceInternal,
		Prefix:    "grid",
		Local:     c.Local,
		Remote:    c.Remote,
		Subroute:  "",
	}
}

// subroute adds a specific subroute to the request.

	atomic.AddUint64(&o.operations[s], 1)
	o.latency[s].add(d)
}

func osTrace(s osMetric, startTime time.Time, duration time.Duration, path string, err error) madmin.TraceInfo {
	var errStr string
	if err != nil {
		errStr = err.Error()
	}
	return madmin.TraceInfo{
		TraceType: madmin.TraceOS,
		Time:      startTime,
		NodeName:  globalLocalNodeName,
		FuncName:  "os." + s.String(),
		Duration:  duration,
		Path:      path,

		l[tier] = l[tier].merge(st)
	}
}

func (l DailyAllTierStats) addToTierInfo(tierInfos []madmin.TierInfo) []madmin.TierInfo {
	for i := range tierInfos {
		lst, ok := l[tierInfos[i].Name]
		if !ok {
			continue
		}
		for hr, st := range lst.Bins {
			tierInfos[i].DailyStats.Bins[hr] = madmin.TierStats{
				TotalSize:   st.TotalSize,
				NumVersions: st.NumVersions,
				NumObjects:  st.NumObjects,

	if err != nil {
		writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL)
		return
	}

	// Call site replication hook.
	replLogIf(ctx, globalSiteReplicationSys.BucketMetaHook(ctx, madmin.SRBucketMeta{
		Type:      madmin.SRBucketMetaTypePolicy,
		Bucket:    bucket,
		Policy:    bucketPolicyBytes,
		UpdatedAt: updatedAt,
	}))

	// Success.
	writeSuccessNoContent(w)
}