Kafka Consumer Group
The Consumer Group page displays detailed information of a selected consumer group.
Summary Panel
The summary panel displays the current status of the following metrics.
| Metric | Description |
|---|---|
| Num Clients | The number of clients. |
| Num Topics | The number of topics. |
| Client Coordinator | The host ID that is selected as client coordinator. |
| State | The current state of the consumer group. The state can be either of the following: Completing Rebalance, Dead, Empty, Preparing Rebalance, Stable, Unknown. |
| Assignment Strategy | The consumer or producer strategy used to read and assign data from topics. The strategy can be either Range or Round Robin. |
For every consumer group, you can view data in the following columns.
note
Click any row in Topic to view more details of the topic.
| Column Name | Description |
|---|---|
| Topic | The topic name in the consumer group. |
| Num Clients | The number of clients. |
| Num consumers | The number of consumers. |
| Lag | The amount of lag between Kafka producers and consumers. |
For every topic, you can view the following metrics.
note
Click Group By drop-down in the right corner of the second panel and click Topic or Client ID.
| Metric | Description |
|---|---|
| Consumer ID | The ID of the consumer in the topic. |
| Client ID | The client ID in the topic. |
| Host | The host ID the consumer group is connected to. |
| Partition | The number of partitions the topic contains. |
| Topic | The name of the currently selected topic. |
| Lag | The amount of lag between Kafka producers and consumers. |
| Offset | The current position of the consumer. In case of a lag, the Offset value will be less than the End Offset value. |
| End Offset | The last numerical value of the unique identifier of a record. |
Events
Events panel displays the set of activities occurred in the consumer group of Kafka services, as shown in the following image.
