[jira] [Commented] (KAFKA-2076) Add an API to new consumer to allow user get high watermark of partitions.

["Jeff Widman (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/KAFKA-2076?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15657823#comment-15657823 ] 

Jeff Widman commented on KAFKA-2076:
------------------------------------

It'd be great to see this move forward.

> 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: Sub-task
>            Reporter: Jiangjie Qin
>            Assignee: 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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