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KAFKA-20919: Document KIP-1301 group coordinator metrics changes - #23129

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KAFKA-20919: Document KIP-1301 group coordinator metrics changes#23129
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@squah-confluent squah-confluent commented Aug 11, 2026

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Mark the Yammer group coordinator metrics as deprecated and document the
replacement classic-group-count and offset-count metrics.

Reviewers: Chia-Ping Tsai chia7712@gmail.com

@github-actions github-actions Bot added triage PRs from the community docs small Small PRs labels Aug 11, 2026
@squah-confluent

squah-confluent commented Aug 11, 2026

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This is missing from the 4.4 branch.

Mark the Yammer group coordinator metrics as deprecated and document the
replacement classic-group-count and offset-count metrics.
@squah-confluent squah-confluent changed the title KAFKA-20919: Document KIP-1301 metric changes KAFKA-20919: Document KIP-1301 group coordinator metrics changes Aug 11, 2026
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airlock-confluentinc Bot force-pushed the squah-document-kip-1301-metrics branch from 8b87511 to a3210d7 Compare August 11, 2026 07:15
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kafka.server:type=group-coordinator-metrics,name=classic-group-count,state=[empty|preparing_rebalance|completing_rebalance|stable|dead]

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image

It seems the naming is misaligned with the KIP

(Sorry, reviewing on mobile)

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Are you referring to the state capitalization and underscores? It follows the pattern of classic-group-count and streams-group-count. Do you think we should change all three?

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