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https://issues.apache.org/jira/browse/FLINK-34640?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17827076#comment-17827076
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Jing Ge commented on FLINK-34640:
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master: a0c811ec03d51c3b184c28f6f58b79466061ae71
> Replace DummyMetricGroup usage with UnregisteredMetricsGroup
> ------------------------------------------------------------
>
> Key: FLINK-34640
> URL: https://issues.apache.org/jira/browse/FLINK-34640
> Project: Flink
> Issue Type: Technical Debt
> Components: Runtime / Metrics, Tests
> Reporter: Chesnay Schepler
> Assignee: Jeyhun Karimov
> Priority: Major
> Labels: pull-request-available
> Fix For: 1.20.0
>
>
> The {{DummyMetricGroup}} is terrible because it is decidedly unsafe to use.
> Use the {{UnregisteredMetricsGroup}} instead.
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