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https://issues.apache.org/jira/browse/FLINK-40791?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Martijn Visser updated FLINK-40791:
-----------------------------------
    Affects Version/s: 2.4.0

> OpenTelemetryMetricReporterITCase.testCounterDelta fails with expected 1234 
> but was 25
> --------------------------------------------------------------------------------------
>
>                 Key: FLINK-40791
>                 URL: https://issues.apache.org/jira/browse/FLINK-40791
>             Project: Flink
>          Issue Type: Bug
>          Components: Runtime / Metrics
>    Affects Versions: 2.3.1, 2.4.0
>            Reporter: Martijn Visser
>            Priority: Major
>
> https://dev.azure.com/apache-flink/98463496-1af2-4620-8eab-a2ecc1a2e6fe/_build/results?buildId=79306&view=logs&j=2e8cb2f7-b2d3-5c62-9c05-cd756d33a819
>  (release-2.3 push, 2026-09-21)
> {code}
> [ERROR] 
> org.apache.flink.metrics.otel.OpenTelemetryMetricReporterITCase.testCounterDelta
>  -- Time elapsed: 121.9 s <<< ERROR!
> org.apache.flink.metrics.otel.OpenTelemetryTestBase$ConsumeDataLogException:
> org.opentest4j.AssertionFailedError:
> expected: 1234
>  but was: 25
>         at 
> org.apache.flink.metrics.otel.OpenTelemetryTestBase.lambda$eventuallyConsumeJson$1(OpenTelemetryTestBase.java:118)
>                                                                 at 
> org.apache.flink.metrics.otel.OpenTelemetryMetricReporterITCase.testCounterDelta(OpenTelemetryMetricReporterITCase.java:200)
> Caused by: org.opentest4j.AssertionFailedError:
> expected: 1234
>  but was: 25
>         at 
> org.apache.flink.metrics.otel.OpenTelemetryMetricReporterITCase.lambda$testCounterDelta$5(OpenTelemetryMetricReporterITCase.java:213)
> {code}
> Line 213 is the assertion in the second {{eventuallyConsumeJson}}, after 
> {{counter.inc(25)}} and the second {{report()}}; the first one passed. The 
> push did not touch the test.



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