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https://issues.apache.org/jira/browse/KAFKA-7219?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16563199#comment-16563199
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Ismael Juma commented on KAFKA-7219:
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Thanks for the JIRA. Note that adding metrics requires a KIP
(https://cwiki.apache.org/confluence/display/KAFKA/Kafka+Improvement+Proposals).
The main drawback is the additional memory usage of all these new metrics.
> Add topic/partition level metrics.
> ----------------------------------
>
> Key: KAFKA-7219
> URL: https://issues.apache.org/jira/browse/KAFKA-7219
> Project: Kafka
> Issue Type: Improvement
> Components: metrics
> Reporter: Satish Duggana
> Assignee: Satish Duggana
> Priority: Major
> Labels: needs-kip
>
> Currently, Kafka generates different metrics for topics on a broker.
> - MessagesInPerSec
> - BytesInPerSec
> - BytesOutPerSec
> - BytesRejectedPerSec
> - ReplicationBytesInPerSec
> - ReplicationBytesOutPerSec
> - FailedProduceRequestsPerSec
> - FailedFetchRequestsPerSec
> - TotalProduceRequestsPerSec
> - TotalFetchRequestsPerSec
> - FetchMessageConversionsPerSec
> - ProduceMessageConversionsPerSec
> Add metrics for individual partitions instead of having only at topic level.
> Some of these partition level metrics are useful for monitoring applications
> to monitor individual topic/partitions.
>
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