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https://issues.apache.org/jira/browse/FLINK-39893?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18089209#comment-18089209
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Efrat Levitan commented on FLINK-39893:
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For reference: https://lists.apache.org/thread/l0ysm6jyhv3gjm1wnyhwvmwk5dot4ckt
> Respect non-monotonic counter accumulation in openTelemetry reporter
> --------------------------------------------------------------------
>
> Key: FLINK-39893
> URL: https://issues.apache.org/jira/browse/FLINK-39893
> Project: Flink
> Issue Type: Bug
> Components: Runtime / Metrics
> Affects Versions: 2.2.1
> Reporter: Efrat Levitan
> Priority: Major
> Labels: pull-request-available
>
> Otel reporter
> [drops|https://github.com/apache/flink/blob/master/flink-metrics/flink-metrics-otel/src/main/java/org/apache/flink/metrics/otel/OpenTelemetryMetricAdapter.java#L66-L73]
> the non-incremental datapoint with a warn, which is incorrect because flink
> {{Counter}} does not guarantee monotonicity (i.e
> [supports|https://github.com/apache/flink/blob/master/flink-metrics/flink-metrics-core/src/main/java/org/apache/flink/metrics/Counter.java#L35-L45]
> {{{}dec{}}}, or {{inc}} by a negative)
>
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