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https://issues.apache.org/jira/browse/FLINK-33173?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17776501#comment-17776501
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tanjialiang commented on FLINK-33173:
-------------------------------------
We need to make SourceReaderBase provide an interface for implementations to
deliver FetchTime all the way to the place extracting EventTime in
SourceOutput. Then we can continue working on this.
> Support currentFetchEventTimeLag metrics for KafkaSource
> --------------------------------------------------------
>
> Key: FLINK-33173
> URL: https://issues.apache.org/jira/browse/FLINK-33173
> Project: Flink
> Issue Type: Improvement
> Components: Connectors / Kafka
> Affects Versions: kafka-3.0.0
> Reporter: tanjialiang
> Priority: Major
> Labels: pull-request-available
>
> In the connector specifications of
> [FLIP-33|https://cwiki.apache.org/confluence/display/FLINK/FLIP-33],
> {{currentFetchEventTimeLag}} metrics is the time in milliseconds from the
> record event timestamp to the timestamp Flink fetched the record. It can
> reflect the consupition latency before deserialization.
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