func initAllSubsystems(ctx context.Context) {
	// Initialize notification peer targets
	globalNotificationSys = NewNotificationSys(globalEndpoints)

	// Create new notification system
	globalEventNotifier = NewEventNotifier(GlobalContext)

	// Create new bucket metadata system.
	if globalBucketMetadataSys == nil {
		globalBucketMetadataSys = NewBucketMetadataSys()
	} else {
		// Reinitialize safely when testing.