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https://issues.apache.org/jira/browse/FLINK-31752?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17712353#comment-17712353
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Dong Lin commented on FLINK-31752:
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[~yunfengzhou] Could you help fix this bug?
> SourceOperatorStreamTask increments numRecordsOut twice
> -------------------------------------------------------
>
> Key: FLINK-31752
> URL: https://issues.apache.org/jira/browse/FLINK-31752
> Project: Flink
> Issue Type: Bug
> Components: Runtime / Metrics
> Affects Versions: 1.17.0
> Reporter: Weihua Hu
> Assignee: Yunfeng Zhou
> Priority: Major
> Attachments: image-2023-04-07-15-51-44-304.png
>
>
> The counter of numRecordsOut was introduce to ChainingOutput to reduce the
> function call stack depth in
> https://issues.apache.org/jira/browse/FLINK-30536
> But SourceOperatorStreamTask.AsyncDataOutputToOutput increments the counter
> of numRecordsOut too. This results in the source operator's numRecordsOut are
> doubled.
> We should delete the numRecordsOut.inc in
> SourceOperatorStreamTask.AsyncDataOutputToOutput.
> [~xtsong][~lindong] Could you please take a look at this.
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