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https://issues.apache.org/jira/browse/KAFKA-1634?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14151279#comment-14151279
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Jun Rao commented on KAFKA-1634:
--------------------------------

Another use case is the following. It may not make sense to retain an offset 
longer than the data retention time. So, if data is kept for only 7 days, a 
consumer client may want to set timestamp to be now + 7 days to preserve the 
offset as long as it's still valid.

Joel probably can comment on the general use cases more.


> Update protocol wiki to reflect the new offset management feature
> -----------------------------------------------------------------
>
>                 Key: KAFKA-1634
>                 URL: https://issues.apache.org/jira/browse/KAFKA-1634
>             Project: Kafka
>          Issue Type: Bug
>            Reporter: Neha Narkhede
>            Assignee: Jun Rao
>            Priority: Blocker
>             Fix For: 0.8.2
>
>
> From the mailing list -
> following up on this -- I think the online API docs for OffsetCommitRequest
> still incorrectly refer to client-side timestamps:
> https://cwiki.apache.org/confluence/display/KAFKA/A+Guide+To+The+Kafka+Protocol#AGuideToTheKafkaProtocol-OffsetCommitRequest
> Wasn't that removed and now always handled server-side now?  Would one of
> the devs mind updating the API spec wiki?



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