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https://issues.apache.org/jira/browse/FLINK-24574?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17435764#comment-17435764
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Mason Chen commented on FLINK-24574:
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This would enable operators to properly clean up metrics. Here is an example of
attempt that would benefit from this:
https://github.com/apache/flink/blob/fd01adb87c54abe436ac04d4059a71784762cabd/flink-connectors/flink-connector-kafka/src/main/java/org/apache/flink/connector/kafka/source/metrics/KafkaSourceReaderMetrics.java#L237
> Allow metrics to be removed in UDFs
> -----------------------------------
>
> Key: FLINK-24574
> URL: https://issues.apache.org/jira/browse/FLINK-24574
> Project: Flink
> Issue Type: Improvement
> Components: Runtime / Metrics
> Affects Versions: 1.15.0
> Reporter: Arvid Heise
> Priority: Major
>
> A user asked
> {noformat}
> Suppose I have a short lived process within a UDF that defines metrics. After
> the process has completed, the underlying resources should be cleaned up. Is
> there an API to remove/unregister metrics?{noformat}
> There are probably more related use cases, where a metric is only temporarily
> meaningful.
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