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Measures reported by KafkaCoGroupTest
The Kafka Coordinator Group is one of the brokers which receives heartbeats (or polling for messages) from all consumers of a consumer group. Every consumer group has a group coordinator. If a consumer stops sending heartbeats, the coordinator will trigger a rebalance. Using this test, the administrators can monitor the Coordinator groups and identify similar potential conditions, if any.
Outputs of the test: One set of results for the target Apache Kafka Message System.
The measures made by this test are as follows:
| Measurement |
Description |
Measurement Unit |
Interpretation |
| numGroupsDead |
Indicates the number of groups which are currently in the dead state. |
Number |
Ideally, the value of this measure should be zero.
|
| numGroupsStable |
Indicates the number of groups which are currently in the stable state. |
Number |
A very high value is desired for this measure.
|
| numOffsets |
Indicates the number of offsets. |
Number |
|
| numGroups |
Indicates the number of output groups to generate. |
Number |
|
| numGroupCompletRebalance |
Indicates number of consumer groups which are currently in completing re-balance state. |
Number |
|
| numGroupsEmpty |
Indicates the number of groups which are currently in the empty state. |
Number |
|
| numGroupPreparRebalance |
Indicates the number of consumer groups which are currently in preparing re-balance state. |
Number |
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