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https://issues.apache.org/jira/browse/FLINK-15438?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17028127#comment-17028127
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Jörn Kottmann edited comment on FLINK-15438 at 2/1/20 3:58 PM:
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No, didn't mange to find the exact cause.
The current implementation is sending counts that are really wrong, with my
changes this is much better.
Should I send the PR for it and you could give it a critical review?
was (Author: joern):
No, didn't mange to find the exact cause.
The current implementation is sending counts that are really wrong, with my
changes this is much better.
Should I send the PR for it you could give it a critical review?
> Counter metrics are incorrectly reported as total counts to DataDog
> -------------------------------------------------------------------
>
> Key: FLINK-15438
> URL: https://issues.apache.org/jira/browse/FLINK-15438
> Project: Flink
> Issue Type: Bug
> Components: Runtime / Metrics
> Affects Versions: 1.9.1
> Reporter: Jörn Kottmann
> Assignee: Jörn Kottmann
> Priority: Minor
>
> The Flink semantics of a counter are not matching with the counters in
> DataDog.
> In Flink a counter counts the total of increment and decrement calls.
> In DataDog a counter is a rate over the reporting interval.
> The Flink implementation of the DataDog reporter seems to send the Flink
> counter value each time the metrics are reported. Correct would be to send
> the delta of the counter since the last report.
> There are some features in DataDog which are easier to use if this could be
> fixed, e.g. alerts based on counters.
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