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https://issues.apache.org/jira/browse/KAFKA-2076?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14389020#comment-14389020
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Jay Kreps commented on KAFKA-2076:
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Hey [~granthenke] I don't really get the relationship between that and the
existing offset request, it would be good to flesh that out. That existing
request serves the same purpose and also does other things but KIP-17 doesn't
actually replace all those use cases.
> Add an API to new consumer to allow user get high watermark of partitions.
> --------------------------------------------------------------------------
>
> Key: KAFKA-2076
> URL: https://issues.apache.org/jira/browse/KAFKA-2076
> Project: Kafka
> Issue Type: Improvement
> Reporter: Jiangjie Qin
>
> We have a use case that user wants to know how far it is behind a particular
> partition on startup. Currently in each fetch response, we have high
> watermark for each partition, we only keep a global max-lag metric. It would
> be better that we keep a record of high watermark per partition and update it
> on each fetch response. We can add a new API to let user query the high
> watermark.
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