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Date: Thu, 5 Jan 2012 21:28:39 +0000 (UTC)
From: "Edward Capriolo (Commented) (JIRA)" <jira@apache.org>
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Subject: [jira] [Commented] (KAFKA-232) ConsumerConnector has no access to
 "getOffsetsBefore"
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    [ https://issues.apache.org/jira/browse/KAFKA-232?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13180851#comment-13180851 ] 

Edward Capriolo commented on KAFKA-232:
---------------------------------------

Interesting idea. I am not sure that will work well, many producers will be logging and I would expect that some messages will arrive out of order. Especially as the minute turns over. In the worst case scenario a producer might have an unexpected shutdown and wake up at some time later. Ideally I would like the producers to not have to write special headers etc. I thought of recording the last message seen assuming that each record is more or less unique but there are edge cases here as well.

I opened this issue up because I am wondering why the two consumers have different functionality. Which one should be used for which cases? It is not entirely clear to a new user like myself. 

>From a mile-high view it seems like if the ConsumerConnection has access to commitOffset() it should be able to call getOffset(). Is there some technical complexity in implementing this?

                
> ConsumerConnector has no access to "getOffsetsBefore" 
> ------------------------------------------------------
>
>                 Key: KAFKA-232
>                 URL: https://issues.apache.org/jira/browse/KAFKA-232
>             Project: Kafka
>          Issue Type: New Feature
>            Reporter: Edward Capriolo
>            Priority: Minor
>
> kafka.javaapi.SimpleConsumer has "getOffsetsBefore". I would like this ability in KafkaMessageStream or in ConsumerConnector. In this way clients can access their current position.

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