[jira] [Assigned] (KAFKA-20877) Streams task-level restore-rate and update-rate incorrect

["Matthias J. Sax (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/KAFKA-20877?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Matthias J. Sax reassigned KAFKA-20877:
---------------------------------------

    Assignee: Matthias J. Sax

> Streams task-level restore-rate and update-rate incorrect
> ---------------------------------------------------------
>
>                 Key: KAFKA-20877
>                 URL: https://issues.apache.org/jira/browse/KAFKA-20877
>             Project: Kafka
>          Issue Type: Bug
>          Components: streams
>    Affects Versions: 3.5.0
>            Reporter: Matthias J. Sax
>            Assignee: Matthias J. Sax
>            Priority: Major
>
> The task-level metrics restore-rate/restore-total (active tasks) and update-rate/update-total (standby tasks) are meant to report how many changelog records were restored or updated. update-rate is documented as "The average number of records updated per second".
> However, the rate-metric is incorrectly captured. It counts how many times the sensor was recorded and discards the value (number of records restored), so it incorrectly reports restore/update batches per second.
> Introduced via KAFKA-10199 which added these metrics.



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