[jira] [Resolved] (KAFKA-2493) Add ability to fetch only keys in consumer

["Sönke Liebau (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/KAFKA-2493?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Sönke Liebau resolved KAFKA-2493.
---------------------------------
    Resolution: Won't Fix

As this has been dormant for a long time and no one reacted to my comment I'll close this for now.

> Add ability to fetch only keys in consumer
> ------------------------------------------
>
>                 Key: KAFKA-2493
>                 URL: https://issues.apache.org/jira/browse/KAFKA-2493
>             Project: Kafka
>          Issue Type: Wish
>          Components: consumer
>            Reporter: Ivan Balashov
>            Assignee: Neha Narkhede
>            Priority: Minor
>
> Often clients need to find out which offsets contain necessary data. One of the possible solutions would be to iterate with small fetch size. However, this still leads to unnecessary data being transmitted in case keys already reference searched data. The ability to fetch keys only would simplify search for the necessary offset.
> Of course, there can be other scenarios where consumer needs keys only, without message part.



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