fi, err := Lstat(s.formatFile)
	if err != nil {
		// If the disk is still not initialized.
		if osIsNotExist(err) {
			if err = Access(s.drivePath); err == nil {
				// Disk is present but missing `format.json`
				return nil, errUnformattedDisk
			}
			if osIsNotExist(err) {
				return nil, errDiskNotFound
			} else if osIsPermission(err) {
				return nil, errDiskAccessDenied
			}

	for {
		select {
		case entry, ok := <-diffCh:
			if !ok {
				return
			}
			if err := enc.Encode(entry); err != nil {
				return
			}
			if len(diffCh) == 0 {
				// Flush if nothing is queued
				w.(http.Flusher).Flush()
			}
		case <-keepAliveTicker.C:
			if len(diffCh) > 0 {
				continue
			}
			if _, err := w.Write([]byte(" ")); err != nil {
				return
			}

	if isGroup {
		if store.getUsersSysType() == MinIOUsersSysType {
			g, ok := c.iamGroupsMap[name]
			if !ok {
				if err := store.loadGroup(context.Background(), name, c.iamGroupsMap); err != nil {
					return nil, time.Time{}, err
				}
				g, ok = c.iamGroupsMap[name]
				if !ok {
					return nil, time.Time{}, errNoSuchGroup
				}
			}

				if !update {
					if !isPtr {
						elem = elem.Elem()
					}
					if isArrayKind {
						if reflectValue.Len() >= int(db.RowsAffected) {
							reflectValue.Index(int(db.RowsAffected - 1)).Set(elem)
						}
					} else {
						reflectValue = reflect.Append(reflectValue, elem)
					}
				}
			}

			if !update {
				db.Statement.ReflectValue.Set(reflectValue)

				if err != nil {
					return err
				}

				// Check if the current bucket has a configured lifecycle policy
				lc, err = globalLifecycleSys.Get(bi.Name)
				if err != nil && !errors.Is(err, BucketLifecycleNotFound{Bucket: bi.Name}) {
					return err
				}

				// Check if bucket is object locked.
				lr, err = globalBucketObjectLockSys.Get(bi.Name)
				if err != nil {
					return err
				}

	if dir == "" {
		dir = getDefaultDir()
	}

	if dir == "" {
		if !dirSet {
			return nil, fmt.Errorf("missing option must be provided")
		}
		return nil, fmt.Errorf("provided option cannot be empty")
	}

	// Disallow relative paths, figure out absolute paths.
	dirAbs, err := filepath.Abs(dir)
	if err != nil {
		return nil, err
	}
	err = mkdirAllIgnorePerm(dirAbs)
	if err != nil {

}

// Validate PostgreSQLArgs fields
func (p PostgreSQLArgs) Validate() error {
	if !p.Enable {
		return nil
	}
	if p.Table == "" {
		return fmt.Errorf("empty table name")
	}
	if err := validatePsqlTableName(p.Table); err != nil {
		return err
	}

	if p.Format != "" {
		f := strings.ToLower(p.Format)
		if f != event.NamespaceFormat && f != event.AccessFormat {

// kmsKeyIDFromMetadata returns any AWS S3 KMS key ID in the
// metadata, if any. It returns an empty ID if no key ID is
// present.
func kmsKeyIDFromMetadata(metadata map[string]string) string {
	const ARNPrefix = crypto.ARNPrefix
	if len(metadata) == 0 {
		return ""
	}
	kmsID, ok := metadata[crypto.MetaKeyID]
	if !ok {
		return ""
	}
	if strings.HasPrefix(kmsID, ARNPrefix) {
		return kmsID
	}

	config, _, err := globalBucketMetadataSys.GetObjectLockConfig(bucketName)
	if err != nil {
		if errors.Is(err, BucketObjectLockConfigNotFound{Bucket: bucketName}) {
			return r, nil
		}
		if errors.Is(err, errInvalidArgument) {
			return r, err
		}
		return r, err
	}
	return config.ToRetention(), nil
}

// enforceRetentionForDeletion checks if it is appropriate to remove an

		if _, err := browser.LookupConfig(s[config.BrowserSubSys][config.Default]); err != nil {
			return err
		}
	default:
		if config.LoggerSubSystems.Contains(subSys) {
			if err := logger.ValidateSubSysConfig(ctx, s, subSys); err != nil {
				return err
			}
		}
	}

	if config.NotifySubSystems.Contains(subSys) {
		if err := notify.TestSubSysNotificationTargets(ctx, s, subSys, NewHTTPTransport()); err != nil {