Namespace: minioNamespace,
					Subsystem: auditSubsystem,
					Name:      "failed_messages",
					Help:      "Total number of messages that failed to send since start",
					Type:      counterMetric,
				},
				VariableLabels: map[string]string{"target_id": id},
				Value:          float64(st.FailedMessages),
			})
		}
		return metrics
	})
	return mg
}