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https://issues.apache.org/jira/browse/FLINK-29037?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17631772#comment-17631772
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Lim Qing Wei commented on FLINK-29037:
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I believe this is still not supported in Flink 1.15 and above.
If I read it correctly, this is the relevant code:
[https://github.com/apache/flink/blob/master/flink-metrics/flink-metrics-prometheus/src/main/java/org/apache/flink/metrics/prometheus/AbstractPrometheusReporter.java#L365]
> Flink Histogram not emitting sum while using Metrics Reporter
> -------------------------------------------------------------
>
> Key: FLINK-29037
> URL: https://issues.apache.org/jira/browse/FLINK-29037
> Project: Flink
> Issue Type: New Feature
> Components: Runtime / Metrics
> Affects Versions: 1.13.6
> Reporter: Sarang Vadali
> Priority: Major
>
> I am currently registering a Flink Histogram and using the Prometheus Metrics
> Reporter to send this metric to our Time Series Data Storage. When Prometheus
> grabs this metric and converts it to the "summary" type, there is no sum
> found (only the streaming quantiles and count). This is causing an issue when
> our metrics agent is attempting to capture the Flink Histogram/Prometheus
> Summary.
> I was wondering if in a newer version (than 1.13.6) the histogram sum is
> computed by Flink and what that version would be? If not, is there any work
> around so that a Flink histogram can emit all 3 elements (quantiles, sum, and
> count) in Prometheus format?
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