[jira] [Commented] (KAFKA-1588) Offset response does not support two requests for the same topic/partition combo

["Guozhang Wang (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/KAFKA-1588?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14092461#comment-14092461 ] 

Guozhang Wang commented on KAFKA-1588:
--------------------------------------

As have discussed with Todd, changing the map to set in the offset response would resolve this problem.

> Offset response does not support two requests for the same topic/partition combo
> --------------------------------------------------------------------------------
>
>                 Key: KAFKA-1588
>                 URL: https://issues.apache.org/jira/browse/KAFKA-1588
>             Project: Kafka
>          Issue Type: Bug
>    Affects Versions: 0.8.2
>            Reporter: Todd Palino
>
> When performing an OffsetFetchRequest, if you request the same topic and partition combination in a single request more than once (for example, if you want to get both the head and tail offsets for a partition in the same request), you will get a response for both, but they will be the same offset.
> We identified that the problem is that when the offset response is assembled, a map is used to store the offset info before it is converted to the response format and sent to the client. Therefore, the second request for a topic/partition combination will overwrite the offset from the first request.



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