Mason Chen created FLINK-30833:
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Summary: MetricListener supports closing metric groups
Key: FLINK-30833
URL: https://issues.apache.org/jira/browse/FLINK-30833
Project: Flink
Issue Type: Improvement
Components: Runtime / Metrics, Tests
Affects Versions: 1.16.1
Reporter: Mason Chen
The internal TestingMetricRegistry does not register an action when a metric
group is closed. This would allow the use of the MetricListener to test logic
that closes metric groups.
[https://github.com/apache/flink/blob/44dbb8ec84792540095b826616d0f21b745aa995/flink-test-utils-parent/flink-test-utils/src/main/java/org/apache/flink/metrics/testutils/MetricListener.java#L53]
This change doesn't require exposing any public API and is transparent.
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