[jira] [Commented] (KAFKA-7219) Add topic/partition level metrics.

["Ismael Juma (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/KAFKA-7219?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16563199#comment-16563199 ] 

Ismael Juma commented on KAFKA-7219:
------------------------------------

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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