transitionedObjects  MetricName = "transitioned_objects"
	transitionedVersions MetricName = "transitioned_versions"

	tierRequestsSuccess MetricName = "requests_success"
	tierRequestsFailure MetricName = "requests_failure"

	kmsOnline          = "online"
	kmsRequestsSuccess = "request_success"
	kmsRequestsError   = "request_error"
	kmsRequestsFail    = "request_failure"
	kmsUptime          = "uptime"

	webhookOnline = "online"
)

		Subsystem: tierSubsystem,
		Name:      ttlbDistribution,
		Help:      "Distribution of time to last byte for objects downloaded from warm tier",
		Type:      gaugeMetric,
	}

	// {minio_node}_{tier}_{requests_success}
	tierRequestsSuccessMD = MetricDescription{
		Namespace: nodeMetricNamespace,
		Subsystem: tierSubsystem,
		Name:      tierRequestsSuccess,