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Ewen Cheslack-Postava updated KAFKA-5341: ----------------------------------------- Fix Version/s: 1.0.0 > 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 > Fix For: 1.0.0 > > > We currently have under replicated partitions, but we do not have a metric to > track the number of partitions whose in-sync replicas count < minIsr. > Partitions whose in-syn replicas count < minIsr will be unavailable to those > producers who uses ack = all. It is important for Kafka operators to be > notified of the existence of such partition because their existence reduces > the availability of the Kafka service. > More specifically, we can define a per-broker metric > UnderMinIsrPartitionCount as "The number of partitions that this broker leads > for which in-sync replicas count < minIsr." 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 UnderMinIsrPartitionCount. > See > https://cwiki.apache.org/confluence/display/KAFKA/KIP-164-+Add+UnderMinIsrPartitionCount+and+per-partition+UnderMinIsr+metrics > for more detail. -- This message was sent by Atlassian JIRA (v6.4.14#64029)