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https://issues.apache.org/jira/browse/FLINK-22631?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17347394#comment-17347394
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Chesnay Schepler commented on FLINK-22631:
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I agree that we shouldn't change anything. Metrics were always meant for
observing _running_ applications. Changing this will be quite difficult and
introduces potential stability issues.
If you want to know how many bytes/records the job has consumed at the end you
can query the REST API instead.
> Metrics are incorrect when task finished
> ----------------------------------------
>
> Key: FLINK-22631
> URL: https://issues.apache.org/jira/browse/FLINK-22631
> Project: Flink
> Issue Type: Improvement
> Components: Runtime / Metrics
> Reporter: Li
> Priority: Major
> Attachments: image-2021-05-11-20-13-25-886.png,
> image-2021-05-11-20-14-29-290.png, image-2021-05-19-10-10-29-765.png,
> image-2021-05-19-10-11-02-764.png
>
>
> MetricReporters are reported periodically, default 10 seconds. The
> final metrics may not be reported to metric system like pushgateway when task
> finished. This makes users unable to obtain the correct metrics。
>
> Maybe metricReporters should be reported once manually before closed.
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