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https://issues.apache.org/jira/browse/KAFKA-5341?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Dong Lin updated KAFKA-5341:
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Summary: Add UnderMinIsrPartitionCount and per-partition UnderMinIsr
metrics (was: Add unavailablePartitionCount and per-partition Unavailable
metrics (KIP-164))
> Add UnderMinIsrPartitionCount and per-partition UnderMinIsr metrics
> -------------------------------------------------------------------
>
> Key: KAFKA-5341
> URL: https://issues.apache.org/jira/browse/KAFKA-5341
> Project: Kafka
> Issue Type: New Feature
> Reporter: Dong Lin
> Assignee: Dong Lin
>
> We currently have under replicated partitions, but we do not have a metrics
> for unavailable partitions. Unavailable partitions could be most easily
> defined as “The number of partitions that this broker leads for which the ISR
> is insufficient to meet the minimum ISR required.” So if the RF was 3, and
> min ISR is 2, then when there are 2 replicas in ISR this partition would be
> in the under replicated partitions count. When there is 1 replica in ISR,
> this partition would also be in the unavailable partitions count.
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