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https://issues.apache.org/jira/browse/FLINK-39790?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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ASF GitHub Bot updated FLINK-39790:
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Labels: pull-request-available (was: )
> State latency/size tracking metrics not exported without sampling
> ------------------------------------------------------------------
>
> Key: FLINK-39790
> URL: https://issues.apache.org/jira/browse/FLINK-39790
> Project: Flink
> Issue Type: Bug
> Components: Runtime / State Backends
> Affects Versions: 2.1.0
> Reporter: Efrat Levitan
> Assignee: Efrat Levitan
> Priority: Minor
> Labels: pull-request-available
>
> h4. How to reproduce
> {code:java}
> state.*-track.keyed-state-enabled: true
> state.*-track.sample-interval: 1
> {code}
> I think the latency/size tracking histogram metrics give a useful insight on
> the state operations. I noticed nothing is exported when setting
> sample-interval to 1, because for {{sampleInterval}} of 1,
> {{StateMetricBase#loopUpdateCounter}} will always return 0.
> Enabling the metrics without sampling is probably not a great idea, and yet
> it looks like an edge case that could be handled (or documented).
> [~hejufang001] what do you think? (I drafted a possible fix in
> https://github.com/apache/flink/pull/28257)
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