Monitor data reference for Azure Event Grid's pull delivery

This article provides a reference of log and metric data collected to analyze the performance and availability of Azure Event Grid's pull delivery.

Metrics

Microsoft.EventGrid/namespaces

Metric name	Display name	Description
SuccessfulPublishedEvents	Successful published events	Number of published events to a topic or topic space in a namespace.
FailedPublishedEvents	Failed to publish events	Number of events that failed because Event Grid didn't accept them. This count doesn't include events that were published but failed to reach Event Grid due to a network issue.
SuccessfulReceivedEvents	Successful received event	Number of events that were successfully returned to (received by) clients.
FailedReceivedEvents	Failed to receive event	Number of events requested by clients that Event Grid couldn't deliver successfully.
SuccessfulAcknowlegedEvents	Successful acknowledged events	Number of events acknowledged by clients.
FailedAcknowledgedEvents	Failed to acknowledge events	Number of events that clients didn't acknowledge.
SuccessfulReleasedEvents	Successful released events	Number of events released by queue subscriber clients.
FailedReleasedEvents	Failed to release event counts	Number of events that failed to be released back to Event Grid.
DeadLetteredEvents	Dead-lettered events	Number of events sent to a dead-letter location.
DroppedEvents	Dropped events	Number of events successfully received by Event Grid but later dropped (deleted) due to one of the following reasons: - The maximum delivery count of a queue or push subscription has been reached and a dead-letter destination hasn't been configured or isn't available - Events have been rejected by queue subscription clients and there's no dead-letter destination configured or isn't available. -The time-to-live configured for the event subscription has been reached and there's no dead-letter destination configured or isn't available.
ReceiveLatencyInMilliseconds	Receive operations latency in milliseconds	Latency in milliseconds for receive message operations
PublishLatencyInMilliseconds	Publish operations latency in milliseconds	Latency in milliseconds for publish event operations
AcknowledgeLatencyInMilliseconds	Acknowledge operations latency in milliseconds	Latency in milliseconds for acknowledge event operations
ReleaseLatencyInMilliseconds	Release operations latency in milliseconds	Latency in milliseconds for release event operations
RejectLatencyInMilliseconds	Reject operations latency in milliseconds	Latency in milliseconds for reject event operations
MatchedEvents	Matched events	Number of events that were successfully published to the service and met all the filtering criteria specified in event subscriptions.
UnMatchedEvents	Unmatched events	Number of events that were successfully published to the service, but didn't meet all filtering criteria specified in event subscriptions.

Next steps

To learn how to enable diagnostic logs for topics or domains, see Enable diagnostic logs.