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Posted to jira@kafka.apache.org by "hudeqi (Jira)" <ji...@apache.org> on 2023/04/03 07:23:00 UTC

[jira] [Updated] (KAFKA-14868) Remove some forgotten metrics when the replicaManager is closed

     [ https://issues.apache.org/jira/browse/KAFKA-14868?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

hudeqi updated KAFKA-14868:
---------------------------
    Summary: Remove some forgotten metrics when the replicaManager is closed  (was: Add metric counting capability to KafkaMetricsGroup to facilitate checking that the metric is missed when it is closed)

> Remove some forgotten metrics when the replicaManager is closed
> ---------------------------------------------------------------
>
>                 Key: KAFKA-14868
>                 URL: https://issues.apache.org/jira/browse/KAFKA-14868
>             Project: Kafka
>          Issue Type: Improvement
>            Reporter: hudeqi
>            Assignee: hudeqi
>            Priority: Major
>
> In some current classes, some metrics are always registered when loading, but it often occurs that some or all metrics are forgotten to be removed when closing. For example, in the ReplicaManager class, IsrExpandsPerSec, IsrShrinksPerSec, and FailedIsrUpdatesPerSec are all removed by omission.
> Therefore, increase the counting capability in KafkaMetricsGroup. When using the method of KafkaMetricsGroup to add or remove a metric, it will add 1 to the corresponding counter, so that you can check whether there is a forgotten metric to be removed by counting and comparing in the unit test of the corresponding class. 



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