Merge pull request #302729 from jaganth/docs-editor/monitor-event-hubs-reference-1752541585

Update monitor-event-hubs-reference.md

Author: prmerger-automator[bot]

articles/event-hubs/monitor-event-hubs-reference.md

@@ -222,13 +222,13 @@ Application metrics logs capture the aggregated information on certain metrics r
 
 | Name | Description |
 |:-------|:------- |
-| `ConsumerLag` | Indicate the lag between consumers and producers.  |
+| `ConsumerLag` |Indicate the lag between consumers and producers.  The following governs the emission of consumer lag for Kafka consumers. A namespace is idle from Kafka offset commit point of view if there are no offset commits for any Kafka consumer group under the namespace. If namespace is idle for an hour, then we will stop emitting lag metrics. As long as namespace is not idle for offset commit, we will keep emitting metrics for all Kafka consumer groups under that namespace. If a namespace is non idle and the last offset commit for a consumer group predates the hub or topic's retention period, consumer lag will no longer be emitted. For AMQP consumers, consumer lag is emitted only as long as there are active receivers on the consumer group. |
 | `NamespaceActiveConnections` | Details of active connections established from a client to the event hub.  |
 | `GetRuntimeInfo` | Obtain run time information from Event Hubs.  |
 | `GetPartitionRuntimeInfo` | Obtain the approximate runtime information for a logical partition of an event hub.  |
-| `IncomingMessages` | Details of number of messages published to Event Hubs.  |
+| `IncomingMessages` | Details of number of messages published to Event Hubs using AMQP protocol. |
 | `IncomingBytes` | Details of Publisher throughput sent to Event Hubs |
-| `OutgoingMessages` | Details of number of messages consumed from Event Hubs.  |
+| `OutgoingMessages` | Details of number of messages consumed from Event Hubs using AMQP protocol.|
 | `OutgoingBytes` | Details of Consumer throughput from Event Hubs. |
 | `OffsetCommit` | Number of offset commit calls made to the event hub  |
 | `OffsetFetch` | Number of offset fetch calls made to the event hub. |