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https://issues.apache.org/jira/browse/FLINK-18850?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17181149#comment-17181149
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ZhuShang commented on FLINK-18850:
----------------------------------
hi,[~libenchao]
i found the accumulator in WindowOperator
{code:java}
private static final String LATE_ELEMENTS_DROPPED_METRIC_NAME =
"numLateRecordsDropped";
protected transient Counter numLateRecordsDropped;
{code}
and also ,in flink ui has the metrics as below
!image-2020-08-20-20-25-03-981.png!
> Add late records dropped metric for row time over windows
> ---------------------------------------------------------
>
> Key: FLINK-18850
> URL: https://issues.apache.org/jira/browse/FLINK-18850
> Project: Flink
> Issue Type: Improvement
> Components: Table SQL / Runtime
> Reporter: Benchao Li
> Priority: Major
> Labels: Starter
> Attachments: image-2020-08-20-20-25-03-981.png
>
>
> Currently all the row time over windows in blink planner runtime discards
> late records silently, it would be good to have a metric about the late
> records dropping.
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