Nick Guo created KAFKA-20679:
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Summary: Remove deprecated Yammer-based group coordinator metrics
Key: KAFKA-20679
URL: https://issues.apache.org/jira/browse/KAFKA-20679
Project: Kafka
Issue Type: Improvement
Components: group-coordinator, metrics
Reporter: Nick Guo
Assignee: Nick Guo
Fix For: 5.0.0
[KIP-1301|https://cwiki.apache.org/confluence/x/Z5U8G] deprecated several
Yammer-based group coordinator metrics in Kafka 4.4 and introduced equivalent
Kafka Metrics replacements. This issue tracks removing the deprecated Yammer
metrics in Kafka 5.0.
Deprecated metrics to remove:
* kafka.coordinator.group:type=GroupMetadataManager,name=NumGroups
* kafka.coordinator.group:type=GroupMetadataManager,name=NumOffsets
*
kafka.coordinator.group:type=GroupMetadataManager,name=NumGroupsPreparingRebalance
*
kafka.coordinator.group:type=GroupMetadataManager,name=NumGroupsCompletingRebalance
* kafka.coordinator.group:type=GroupMetadataManager,name=NumGroupsStable
* kafka.coordinator.group:type=GroupMetadataManager,name=NumGroupsDead
* kafka.coordinator.group:type=GroupMetadataManager,name=NumGroupsEmpty
Replacement Kafka Metrics:
* kafka.server:type=group-coordinator-metrics,name=group-count,protocol=classic
* kafka.server:type=group-coordinator-metrics,name=offset-count
*
kafka.server:type=group-coordinator-metrics,name=classic-group-count,state=\{PreparingRebalance|CompletingRebalance|Stable|Dead|Empty}
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