Supported metrics for Microsoft.EventGrid/namespaces

The following table lists the metrics available for the Microsoft.EventGrid/namespaces resource type.

Table headings

Metric - The metric display name as it appears in the Azure portal.
Name in Rest API - Metric name as referred to in the REST API.
Unit - Unit of measure.
Aggregation - The default aggregation type. Valid values: Average, Minimum, Maximum, Total, Count.
Dimensions - Dimensions available for the metric.
Time Grains - Intervals at which the metric is sampled. For example, PT1M indicates that the metric is sampled every minute, PT30M every 30 minutes, PT1H every hour, and so on.
DS Export- Whether the metric is exportable to Azure Monitor Logs via Diagnostic Settings. For information on exporting metrics, see Create diagnostic settings in Azure Monitor.

For information on metric retention, see Azure Monitor Metrics overview.

For a list of supported logs, see Supported log categories - Microsoft.EventGrid/namespaces

Metric	Name in REST API	Unit	Aggregation	Dimensions	Time Grains	DS Export
Acknowledge Operations Latency The observed latency in milliseconds for acknowledge events operation.	AcknowledgeLatencyInMilliseconds	MilliSeconds	Total	Topic, EventSubscriptionName	PT1M	No
Failed Acknowledged Events The number of events for which acknowledgements from clients failed.	FailedAcknowledgedEvents	Count	Total	Topic, EventSubscriptionName, Error, ErrorType	PT1M	No
Failed Publish Events The number of events that weren't accepted by Event Grid. This count excludes events that were published but failed to reach Event Grid due to a network issue, for example.	FailedPublishedEvents	Count	Total	Topic, Error, ErrorType	PT1M	No
Failed Received Events The number of events that were requested by clients but weren't delivered successfully by Event Grid.	FailedReceivedEvents	Count	Total	Topic, EventSubscriptionName, Error, ErrorType	PT1M	No
Failed Released Events The number of events for which release failed.	FailedReleasedEvents	Count	Total	Topic, EventSubscriptionName, Error, ErrorType	PT1M	No
MQTT: Connections The number of active connections in the namespace.	Mqtt.Connections	Count	Total	Protocol	PT1M	Yes
MQTT: Dropped Sessions The number of dropped sessions by the namespace.	Mqtt.DroppedSessions	Count	Total	DropReason	PT1M	Yes
MQTT: Failed Published Messages The number of MQTT messages that failed to be published into the namespace.	Mqtt.FailedPublishedMessages	Count	Total	QoS, Protocol, Error	PT1M	Yes
MQTT: Failed Routed Messages The number of failed routed messages by the namespace.	Mqtt.FailedRoutedMessages	Count	Total	Error	PT1M	Yes
MQTT: Failed Subscription Operations The number of failed subscription operations (Subscribe, Unsubscribe). This metric is incremented for every topic filter within a subscription request.	Mqtt.FailedSubscriptionOperations	Count	Total	Protocol, OperationType, Error	PT1M	Yes
MQTT: Request Count The number of MQTT requests.	Mqtt.RequestCount	Count	Total	OperationType, Protocol, Error, Result	PT1M	Yes
MQTT: Successful Delivered Messages The number of messages delivered by the namespace. There are no failures for this operation.	Mqtt.SuccessfulDeliveredMessages	Count	Total	QoS, Protocol	PT1M	Yes
MQTT: Successful Published Messages The number of MQTT messages that were published successfully into the namespace.	Mqtt.SuccessfulPublishedMessages	Count	Total	QoS, Protocol	PT1M	Yes
MQTT: Successful Routed Messages The number of successful routed messages by the namespace.	Mqtt.SuccessfulRoutedMessages	Count	Total	<none>	PT1M	Yes
MQTT: Successful Subscription Operations The number of successful subscription operations (Subscribe, Unsubscribe). This metric is incremented for every topic filter within a subscription request.	Mqtt.SuccessfulSubscriptionOperations	Count	Total	Protocol, OperationType	PT1M	Yes
MQTT: Throughput The number of bytes published to or delivered by the namespace.	Mqtt.Throughput	Bytes	Total	Direction	PT1M	Yes
Publish Operations Latency The observed latency in milliseconds for publish events operation.	PublishLatencyInMilliseconds	MilliSeconds	Total	Topic	PT1M	No
Receive Operations Latency The observed latency in milliseconds for receive events operation.	ReceiveLatencyInMilliseconds	MilliSeconds	Total	Topic, EventSubscriptionName	PT1M	No
Reject Operations Latency The observed latency in milliseconds for reject events operation.	RejectLatencyInMilliseconds	MilliSeconds	Total	Topic, EventSubscriptionName	PT1M	No
Successful Acknowledged Events The number of events for which delivery was successfully acknowledged by clients.	SuccessfulAcknowledgedEvents	Count	Total	Topic, EventSubscriptionName	PT1M	No
Successful Publish Events The number of events published successfully to a topic or topic space within a namespace.	SuccessfulPublishedEvents	Count	Total	Topic	PT1M	No
Successful Received Events The total number of events that were successfully returned to (received by) clients by Event Grid.	SuccessfulReceivedEvents	Count	Total	Topic, EventSubscriptionName	PT1M	No
Successful Released Events The number of events that were released successfully by queue subscriber clients.	SuccessfulReleasedEvents	Count	Total	Topic, EventSubscriptionName	PT1M	No